Windows XP Top Secrets

15 Top Windows XP Secrets


1. Useful key shortcuts available:

- Windows key + D - shows the desktop
- Windows key + M - minimizes all open windows
- Windows key + Shift + M - maximizes whole enchilada open windows
- Windows key + E - Runs Windows Explorer
- Windows key + R - shows the RUN dialog
- Windows key + F - shows Search window
- Windows key + Break - shows System Properties box
- Windows key + TAB - Go fini taskbar applications


- Windows key + PAUSE Display the System Properties dialog box
- Windows key + U Unlatched Lift Executive
- ALT + TAB - Cycle through opened applications
- Hold down CTRL while dragging an item to Copy it
- CTRL + ESC Exhibition the Inauguration menu
- ALT + ENTER View the properties for the selected item
- F4 key Display the Address bar list leadership My Computer or
- NUM LOCK + Asterisk ( * ) Expo all of the subfolders that are under the selected folder

2. Pair Windows to protect computer
You can melt Windows to protect the computer when leaving the station succulent by creating a scheme with the corridor rundll32. exeuser32. dll, LockWorkStation. The Windows key + L is also a shortcut to this feature.

3. Edit sysoc. inf to list all software
To show thoroughgoing software that can be removed from your computer ( including protected Windows services ), you can manually edit ( using notepad for model ) the sysoc. inf file located in Windows \ inf \. Just remove the word hide next to the software bring.
* Note * - use this at your own risk. Removing critical components of the system will make Windows instable.

4. Windows XP comes with IPv4 and IPv6
Windows XP comes both IPv4 and IPv6 support. To enable IPv6, you can originate the protocols needed with the command " ipv6 install " in the command - prompt. Then type ipv6 /? to see the options. The installation will not remove the IPv4 protocols so your stock configuration will still work.

5. Access Task Manager with shortcut
To access the Task Manager easier, you answerability make a shortcut that points to % windir % \ system32 \ taskmgr. exe.

6. Stop treating ZIP files like Folders
If you don't want your Windows XP to treat ZIP files like folders, you can disable this component by lofty regsvr32 / u zipfldr. dll at the command prompt or Run dialog. If you start missing it, you encumbrance enable solid by typing regsvr32 zipfldr. dll.

7. Run program as diffrent user
You obligation run a program as a different user. Moral click an application and select Run As command.

8. Switch users leaving applications opened
You can switch users leaving the applications opened too ( * NOTE * advantage this only when needed since live could lead to system instability ).
Snap to Task Manager - processes and end the process explorer. exe. This will end only your session and not all applications. Then go to Applications tab, click New task and type runas / user: domainname \ username explorer. exe. A password prompt will appear to login to the desired username. The user's session will start, with all your previously applications running.
I recommend to unlatched first a command - line prompt and type runas /? to see uncut the options available.

9. Rename multiple files in Windows at once
Rename multiple files in Windows at once. Select them all, right click and select Rename. Enter the desired name. They will mean renamed using what you specified, with a number in brackets to distinguish them.

10. Task kill feature in Windows
Windows has a task kill feature similar to Linux. Go to a command prompt and drop the power tasklist to see running processes hole up PID numbers. Then type tskill to end the specific task. This forces an instant closing of the chore.

11. Edit features with GPEDIT. MSC
You can edit many features by running gpedit. msc. You can add ledger on / observation off scripts here and many features.

12. Edit accounts weight the command prompt
You can edit accounts by gangling " control userpasswords2 " at the command prompt.

13. Use systeminfo. exe to see System Information
You can habit the systeminfo. exe command in the command prompt to see System Information, including all Windows updates besides hotfixes.

14. Disable system services for maximum performance
There are system services that you can disable to free unfolding the system's load. To access the interface that permits you to make changes to system's services, standing services. msc and the command prompt.
This is a list of services that are * usually * useless and can be safely disabled.
Alerter
Application Layer Gateway Service,
Application Management
Automatic Updates
Background Intelligent Transfer
Clipbook
Distributed Fasten Tracking Client
Distributed Transaction Coordinater
Error Reporting Service
Fast User Switching Compatibility
IMAPI CD - Relucent
Indexing Benefit
IPSEC Services
Messenger
Net Logon
Net Meeting
Remote Desktop Sharing
Network DDE
Network DDE DSDM
Portable Media Serial Numeral
Remote Desktop Help Session Executive
Remote Registry
Secondary Logon
Smartcard
SSDP Discovery Service
Uninterruptible Power Vouchsafe
Universal Plug and Play Device Host
Upload Manager
Webclient
Wireless Zero Framework
WMI Performance Adaptor

* NOTE *: Make sure you don't need them since some applications you're using could depend on them. If you make any application to fail by disabling any of the services, go back and enable unaffected again.

15. Keep up Windows XP by using the XP installation CD
If your system failes to start due to an error related to missing HAL. DLL, invalid Boot. ini or any other critical system boot files you can repair this by using the XP installation Video. Simply boot from your XP Setup CD and allow for the Recovery Console. Then run " attrib - H - R - S " on the C: \ Boot. ini file and delete it. Run " Bootcfg / Rebuild " and then Fixboot.

Administrator user name at XP start up screen

To get Admin account on the "Welcome Screen" as well as the other usernames, make sure that there are no accounts logged in.

Press "ctrl-alt-del" twice and you should be able to login as administrator!

finally worked for me after i found out that all accounts have to be logged out first

How To Rename The Recycle Bin

Rename The Recycle Bin

1. Click Start / Run
2. Type regedit and press enter.
3. Open the HKEY_CLASSES_ROOT folder
4. Open the CLSID folder
5. Open the {645FF040-5081-101B-9F08-00AA002F954E} folder
6. Open the ShellFolder folder
7. Change the "Attributes" data value from "40 01 00 20" to "50 01 00 20". Once completed change the "CallForAttributes" dword value to "0x00000000" (double-click and change value data to 0). You must change both of these values to get the rename to appear.

How To Make Windows XP Boot Faster

Make Windows XP Boot Faster


STEP 1: Select Start > Run then type 'regedit'

STEP 2: Locate the following registry...

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Control\SessionManager\MemoryManagement\PrefetchParameters

STEP 3: Make sure you make a backup of the key before editing.

STEP 4: On the EnablePrefetcher value, change the setting from 3 to 5 (decimal).

STEP 5: Close the registry editor.

STEP 6: Restart your computer.
you can see Changes

How To Format & Install Windows Xp learn xp installation

This post demonstrates how to install Windows XP Professional.The procedure to install Windows XP Home edition is very similar to the professional edition.some people don't know how to Formate and install Windows in system.

The best way install Windows XP is to do a clean install. It is not difficult to perform a clean installation. Before you perform the installation I recommend that you backup your important C:/ files in another drive or just Copy n Paste files from C:/ to another. My Document folder also stores in the part for C:/ so you can also save all files of My Document in another part like D:/,E:/..etc..

Lets get started

Restart your PC and do the following...

Go into the BIOS settings of your PC, usually by pressing the F1, F2, F10, or maybe the delete key, If you are not sure watch the screen at startup and it will say "To enter setup press..." You have to be quick and press it. If you miss it restart again.. you can see blue screen like this..



Once you are in the bios you have to change the boot options
In my system Boot change option is in "Advanced BIOS Features"..
Change the First Boot Device to "CD-ROM" You have to make your CD ROM the first boot option.Press F-10 for save settings..



Then Save to CMOS Exit Enter "Y" key for YES,press Enter Key



It will restart your system..

Put your Windows XP CD in the drive...When it says press any key to boot from cd, Press any key on the keyboard...If it doesn't ask you this then restart your computer again.

A blue Welcome to Setup screen will appear and you are on your way.Press Enter To set up Windows Xp now.



Once the set up has loaded all the windows files, It will say "press F8 to agree to the terms and conditions" press F8...



To repair the selected Windows XP installation Press R.
To install Fresh copy of windows XP without repairing Press ESC.
press ECS.



Now you are at the set up, Click your C drive and format your old windows, Press D, it will ask if you are sure by clicking L...

Select the existing partitions to install Windows XP.i recommend select C: partition
Press Enter.



To continue Setup in partition C,Press C.



now here you can formate C:/ in Quick mode or in normal mode.i recommend formate the partiton in normal mode.you can see the file formate is in NTFS or FAT 32.
In my system the file formate is NTFS...



To formate C:/ ,Press F.



Let it format, After the format has completed, It will copy windows files,



When that has completed it will say "computer will reboot in 15 seconds"...



Now your computer has rebooted it will carry on with the set up.



After sometime you can see the Regional and Language Option.Click Next.



Then Personalize your Software by type your name and the name of your company or organization.leave black organization it is optional.Cick Next



Type the Volume License Product Keys..Click Next



Enter the name of your computer.you can also set the Administrator password or leave blank if you dont want to set password.



Set the Date and time and your time zone,click Next.



Set the Network Settings.



Set the Workgroup Computer Domain..



Done ....





Add users that will sign on to this computer.



Welcome Screen..





Log in, to your PC for the first time. You now need to check the device manager to confirm that all the drivers has been loaded or if there are any conflicts. From the start menu select Start -> Settings -> Control Panel. Click on the System icon and then from the System Properties window select the Hardware tab, then click on Device Manager.



If there are any yellow exclamation mark "!" next to any of the listed device, it means that no drivers or incorrect drivers has been loaded for that device. Your hardware should come with manufacturer supplied drivers. You need to install these drivers using automatic setup program provided by the manufacturer or you need to manually install these drivers. If you do not have the drivers, check the manufacturers website to download them.
Install all drives of system like sound, Graphic Card, Modem, Buletooth...etc..
Windows is completely setup when there are no more exclamation marks in the device manager..

Get Recover Folder Option from tools menu

If you open My Computer or Windows Explorer there is a menu item called Folder Options under the Tools menu. You may find that you do not have this option or did have it and it disappeared. There is a method you can try to get it back

Go to Start, Run then type in regedit and click Ok.
Browse to the following key:
HKEY_CURRENT_USER\ Software\ Microsoft \Windows \CurrentVersion \ Policies\ Explorer

Find the NoFolderOptions key and change the vaule to 0 assuming you have this registry key.

Your Home Page Nevr Being Changed

Your Home Page Nevr Being Changed

Some websites illegally modify your registry editor and set their website as default home page, for stop this,
1. Right-click on the Internet Explorer icon on your desktop and select "Properties".

2. In the "Target" box you will see "C:\Program Files\Internet

Explorer\IEXPLORE.EXE".

3. Now by adding the URL of the site to the end of this it overrides any
Homepage setting in internet options:

"C:\Program Files\Internet Explorer\IEXPLORE.EXE" how-2-do.blogspot.com

How To Disable The Send Error Report, to Microsoft

To disable the stupid feature in WinXP which tries to send a report to microsoft every time a program crashes you will have to do this:

Open Control Panel
Click on Preformance and Maintenance.
Click on System.
Then click on the Advanced tab
Click on the error reporting button on the bottom of the windows.
Select Disable error reporting.
Click OK
Done !!!

Getting older programs to run on Windows XP

Most programs run properly on Windows XP. The exceptions are some older games and other programs that were written specifically for an earlier version of Windows. To run your program on Windows XP, you can try the following, Run the Program Compatibility Wizard. As an alternative, you can set the compatibility properties manually. Update your program, drivers, or hardware. These options are covered in detail below.

The Program Compatibility Wizard
This wizard prompts you to test your program in different modes (environments) and with various settings. For example, if the program was originally designed to run on Windows 95, set the compatibility mode to Windows 95 and try running your program again. If successful, the program will start in that mode each time. The wizard also allows you to try different settings, such as switching the display to 256 colors and the screen resolution to 640 x 480 pixels. If compatibility problems prevent you from installing a program on Windows XP, run the Program Compatibility Wizard on the setup file for the program. The file may be called Setup.exe or something similar, and is probably located on the Installation disc for the program. To run the Program Compatibility Wizard click Start, click Help and Support, click Find compatible hardware and software for Windows XP, and then, under See Also in the navigation pane, click "Program Compatibility Wizard."

Set the compatibility properties manually
As an alternative to running the Program Compatibility Wizard, you can set the compatibility properties for a program manually. The settings are the same as the options in the Program Compatibility Wizard. To set the compatibility properties for a program manually Right-click the program icon on your desktop or the shortcut on the Start menu for the program you want to run, and then click Properties. Click the Compatibility tab, and change the compatibility settings for your program.

The Compatibility tab is only available for programs installed on your hard drive. Although you can run the Program Compatibility Wizard on programs or setup files on a CD-ROM or floppy disk, your changes will not remain in effect after you close the program. For more information about an option on the Compatibility tab, right-click the option and then click "What's This."

Update your program or drivers
If your program does not run correctly after testing it with the Program Compatibility Wizard, check the Web for updates or other fixes, as follows:

Check the Web site of the program's manufacturer to see if an update or patch is available.
Check Windows Update to see if a fix is available for the program.
Click Home on the menu bar of Help and Support Center, then click Windows Update in the right pane.

If the program is a game that uses DirectX, ensure that you are using the latest version of DirectX. In addition, check the Web site of the manufacturer of your video card or sound card to see if newer drivers are available for either of them.

Copy to & Move to Option

You can add "Copy To Folder" and "Move To Folder" to the context menu...

So when you right click on the file or folder it have option to copy or move it to another folder...


Start by launching RegEdit from the Start menu's Run dialog. Navigate to the key:
HKEY_CLASSES_ROOT\AllFilesystemObjects\shellex
\ContextMenuHandlers.

*Right-click on the ContextMenuHandlers entry and from the menu, select New | Key.
*Name the new key Copy To.
*Double-click on the (Default) value in the right-hand pane and set its data to {C2FBB630-2971-11D1-A18C-00C04FD75D13}. Click on OK
*Then right-click on the ContextMenuHandlers key and create another new key, naming this one Move To. Set the (Default) value for this one to {C2FBB631-2971-11D1-A18C-00C04FD75D13}.
*Click on OK and close the Registry Editor.

How to make folders 'Invisible'

How to make folders 'Invisible'

First off create a new folder (right click - new - folder), you can put the new folder any where but i chose to put it on my desktop.



Next, rename the folder.. hold the alt key while you type 0160. You must press the number on the numpad...i think thats what its called. You should end up with a folder with no name.

Now you are going to have to change the icon. Right click the folder and click properties then click the customise button up top and you should come to a screen like this.


Click on the 'Change icon' button down the bottom. Scroll across until you come across a blank picture. Click that then click 'Ok'


There you have it, store your secret stuff in there. (homework, assignments etc). To find it again just highlight your whole screen until you see this

How to Unlocking WinXP's setupp.ini

WinXP's setupp.ini controls how the CD acts. IE is it an OEM version or retail? First, find your setupp.ini file in the i386 directory on your WinXP CD. Open it up, it'll look something like this:

ExtraData=707A667567736F696F697911AE7E05
Pid=55034000

The Pid value is what we're interested in. What's there now looks like a standard default. There are special numbers that determine if it's a retail, oem, or volume license edition. First, we break down that number into two parts. The first five digits determines how the CD will behave, ie is it a retail cd that lets you clean install or upgrade, or an oem cd that only lets you perform a clean install? The last three digits determines what CD key it will accept. You are able to mix and match these values. For example you could make a WinXP cd that acted like a retail cd, yet accepted OEM keys.

Now, for the actual values. Remember the first and last values are interchangable, but usually you'd keep them as a pair:

Retail = 51882 335
Volume License = 51883 270
OEM = 82503 OEM

So if you wanted a retail CD that took retail keys, the last line of your setupp.ini file would read:

Pid=51882335

And if you wanted a retail CD that took OEM keys, you'd use:

Pid=51882OEM

How do get the "Administrator" name on Welcome Screen?

To get Admin account on the "Welcome Screen" as well as the other usernames, make sure that there are no accounts logged in.

Press "ctrl-alt-del" twice and you should be able to login as administrator!

finally worked for me after i found out that all accounts have to be logged out first

Increase Bandwidth by tweaking QoS in Windows XP Pro

The following tweak applies only to Windows XP Professional edition.

The default system behavior is that all 100% bandwidth is available, however, if there is a running application that indicates to the OS it needs to send high priority/real time data, then as long as it has the socket open, Windows XP will restrict “best effort” traffic to 80% of the bandwidth so that high priority traffic can be accommodated. Basically, applications can make this request to the operating system for QoS support using the QoS application programming interfaces (APIs) in Windows and this only applies if a specific app is requesting QoS.


If you'd like to change how much bandwidth is reserved for QoS (the default is 20% of the total bandwidth), do the following:

1. Make sure you're logged in as "Administrator" (not just any account with admin privileges).
2. Navigate to START>Run and type: gpedit.msc
3. Navigate to Local Computer Policy > Administrative Templates > Network > QOS Packet Scheduler
4. In the right window, double-click the limit reservable bandwidth setting
5. On the setting tab, check the enabled setting.
6. Where it says "Bandwidth limit %", change it to read 0 (or whatever percentage you want to reserve for high priority QoS data)
7. Click OK, close gpedit.msc

Under START > My Computer > My Network Connections > View Network Connections, right-click on your connection and under Properties (where it lists your protocols), make sure QOS Packet Scheduler is enabled.



The tweak desribed below helps boost priority for DNS & hostname resolution in general. What this means is, it helps web pages load faster, and has negligible effect on downloads (not counting the couple of ms gain with the host resolution at connect-time).

Applying this tweak assumes some proficiency in editing the Windows Registry using Regedit (Start > Run > type: regedit). As always, backup your Registry before making any changes so you can revert to the previous state if you don't like the results.

Host Resolution Priority Tweak

The following tweak applies only to Windows XP Professional edition.
Windows 2k/XP

First, open the Windows Registry using Regedit, and (after backing up) navigate to:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\ServiceProvider



Note the following lines (all hex dwords):
Class = 008 (8) - indicates that TCP/IP is a name service provider, don't change.


LocalPriority = 1f3 (499) - local names cache
HostsPriority = 1f4 (500) - the HOSTS file
DnsPriority = 7d0 (2000) - DNS
NetbtPriority = 7d1 (2001) - NetBT name-resolution, including WINS

What we're aiming to do is increase the priority of the last 4 settings, while keeping their order. The valid range is from -32768 to +32767 and lower numbers mean higher priority compared to other services. What we're aiming at is lower numbers without going to extremes, something like what's shown below should work well:

Change the "Priority" lines to:
LocalPriority = 005 (5) - local names cache
HostsPriority = 006 (6) - the HOSTS file
DnsPriority = 007 (7) - DNS
NetbtPriority = 008 (8) - NetBT name-resolution, including WINS

Windows 9x/ME

The tweak is essentialy the same as in Windows 2000/XP, just the location in the Registry is slightly different. For a more detailed description see the Windows 2000/XP section above.

Open the Windows Registry using Regedit, and (after backing up) navigate to:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP\ServiceProvider

You should see the following settings:
Class=hex:08,00,00,00

LocalPriority=hex:f3,01,00,00
HostsPriority=hex:f4,01,00,00
DnsPriority=hex:d0,07,00,00
NetbtPriority=hex:d1,07,00,00

The "priority" lines should be changed to:
LocalPriority=hex:05,00,00,00
HostsPriority=hex:06,00,00,00
DnsPriority=hex:07,00,00,00
NetbtPriority=hex:08,00,00,00

Reboot for changes to take effect.


In addition to the tweaks already covered in Win 2k/XP Registry Tweaks and More Win 2k/XP Tweaks, the Windows XP Service Pack 2 introduces a few new issues covered in the article below. Please make sure you understand what you are doing before making any changes to your Operating System.
Note the information below only applies to Windows XP Service Pack 2.

Remove the limit on TCP connection attempts

Windws XP SP2 introduces a few new twists to TCP/IP in order to babysit users and "reduce the threat" of worms spreading fast without control. In one such attempt, the devs seem to have limited the number of possible TCP connection attempts per second to 10 (from unlimited in SP1). This argumentative feature can possibly affect server and P2P programs that need to open many outbound connections at the same time.


Rant: The forward thinking of Microsoft developers here is that you can only infect 10 new systems per second via TCP/IP ?!?... If you also consider that each of those infected computers will infect 10 others at the same rate:
second 1: 1+10 computers
second 2: 10+10*10 computers (110 new ones)
second 3: 10+100*10 computers ( 1110 new ones)
second 4: 10+1000*10 computers (11110 new ones)
....
all the way to 10*60 + 10^60 computers in a single minute (that's a number with 60 digits, or it would far exceed Earth's population). Even if we consider that 90% of those computers are unreachable/protected, one would still reach ALL of them within a minute.

In other words, even though it is not going to stop worm spreading, it's going to delay it a few seconds, limit possible network congestion a bit, and limit the use of your PC to 10 connection attempts per second in the process ! I have no problem with the new default setting limiting outbound connection attempts. Still, users should have the option to easily disable or change this setting. I might be going out on a limb here, but ever since the introduction of Windows XP I can't help thinking that I dislike all the bult-in Windows "wisardry" in a sense that the system also limits user access. That irritating trend to ease the mental load on end users is somewhat insulting, considering that Windows is to make the more "intelligent" choice instead of the end user, as well as limit their access to tuning such settings...
End of rant.

With the new implementation, if a P2P or some other network program attempts to connect to 100 sites at once, it would only be able to connect to 10 per second, so it would take it 10 seconds to reach all 100. In addition, even though the setting was registry editable in XP SP1, it is now only possible to edit by changing it directly in the system file tcpip.sys. To make matters worse, that file is in use, so you also need to be in Safe mode in order to edit it.

You only need to worry about the number of connection attempts per second if you have noticed a slowdown in network programs requiring a number of connections opened at once. You can check if you're hitting this limit from the Event Viewer, under System - look for TCP/IP Warnings saying: "TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts". Keep in mind this is a cap only on incomplete outbound connect attempts per second, not total connections. Still, running servers and P2P programs can definitely be affected by this new limitation. Use the fix as you see fit.

To change or remove the limit, you can use the following program:

Event ID 4226 http://www.lvllord.de/

Recommended settings for Windows 2000 / XP

Windows 2000 & XP, unlike NT supports large windows as described in RFC1323 ( the 'RcvWindow' has a maximum value of 2**30 rather than 64K), and includes some other improvements over its predecessors you can use to speed up any TCP/IP transfers. , the descriptions and other options are added to provide you with better understanding and enable you to customize your settings.

All the following entries, unless otherwise noted should be placed in the Windows 2000/XP Registry under the key

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

TCPWindowSize

The value of TCP Window in the Windows 2000 Registry is DWORD, representing number of bytes, with range from 0 to 2^30. The recommended values (in red) optimize TCP for any high speed Internet connection and work best in most cases, however if you'd like to use a custom value follow these guidelines:

For best results, the TCPWindow should be a multiple of MSS (Maximum Segment Size). MSS is generally MTU - 40, where MTU (Maximum Transmission Unit) is the largest packet size that can be transmitted. MTU is usually 1500 (1492 for PPPoE connections). To determine the MTU value of your ISP, check out the Advanced Registry Editing section of our site.

There are three places in the Windows 2000 Registry where you can add the TCP Window parameter.

HKLM/SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
GlobalMaxTcpWindowSize="256960" (DWORD, number of bytes) Valid range is from MSS to 2^30. Add the value as a decimal. Note: For best results RWIN has to be a multiple of MSS lower than 65535 times a scale factor that's a power of 2, i.e. 44 x 1460 = 64240 x 2^2 = 256960. If you choose to use a RWIN lower than 65535, you can simply make it multiple of MSS and turn scaling off (Tcp1323Opts=0)

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
TcpWindowSize="256960" (DWORD, number of bytes) Valid range is from MSS to 2^30. Add the value as a decimal. TcpWindowSize can also exist under TcpipParametersInterface - if added at this location, it overrides the global setting for this particular . Note (10/20/00): Seems MS has found another bug in Windows 2000, the TCPWindowSize should be configured with the global setting (GlobalMaxTcpWindowsSize) rather than this one - Q263088

Note: For best results RWIN has to be a multiple of MSS lower than 65535 times a scale factor that's a power of 2, i.e. 44 x 1460 = 64240 x 2^2 = 256960. If you choose to use a RWIN lower than 65535, you can simply make it multiple of MSS and turn scaling off (Tcp1323Opts=0)

Tcp1323Opts

Tcp1323Opts is a necessary setting in order to enable Large TCPWindow support as described in RFC 1323. Without this parameter, the TCPWindow is limited to 64K.

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
Tcp1323Opts="1" (DWORD, recommended setting is 1. The possible settings are 0 - Disable RFC 1323 options, 1 - Window scaling but no Timestamp options, 3 - Window scaling and Time stamp options.)

Note: Tcp1323Opts="3" might help in some cases where there is increased packet loss, however generally you'll achieve better throughput with Tcp1323Opts="1", since Timestamps add 12 bytes to the header of each packet.

DefaultTTL

DefaultTTL determines the time in seconds and the number of hops a packet lives. While it does not directly affect speed, a larger value increases the amount of time it takes for a packet to be considered lost, discarded and retransmitted. A value that's too small can cause packets to be unable to reach distant servers at all.

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
DefaultTTL="64" (DWORD, recommended setting is 64. Other settings that are widely used are 128 and 32)

EnablePMTUDiscovery

When set to 1 (True), TCP attempts to discover MTU automatically over the path to a remote host. Setting this parameter to 0 causes MTU to default to 576 which reduces overall performance over high speed connections. Note that this setting is different than our Windows 9x recommendation.

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
EnablePMTUDiscovery="1" (DWORD - boolean, valid settings are 0-->False and 1-->True. Many connections perform better with this entry at 1, however, if you prefer to set your upstream to send fixed 1500 packets, you might want to use 0 instead). When set at 1, establishing connections and initial transfer speed might slow down a bit, however you will get better throughput if somewhere in the path large packets need to be fragmented.

EnablePMTUBHDetect

Setting this parameter to 1 (True) enables "black hole" routers to be detected, however it also increases the maximum number of retransmissions for a given segment. In most cases you'd want to keep BHDetect to 0 (False).

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
EnablePMTUBHDetect="0" (DWORD - boolean, valid settings are 0-->False and 1-->True. Recommended setting is 0)

SackOpts

This parameter controls whether or not SACK (Selective Acknowledgement) support is enabled, as specified in RFC 2018. SACK is especially important for connections using large TCP Window sizes.

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
SackOpts="1" (DWORD - boolean, recommended setting is 1. Possible settings are 0 - No Sack options or 1 - Sack Option enabled).

TcpMaxDupAcks

This parameter determines the number of duplicate ACKs that must be received for the same sequence number of sent data before "fast retransmit" is triggered to resend the segment that has been dropped in transit.

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
TcpMaxDupAcks="2" (DWORD - range 1-3, recommended setting is 2).

Windows Logo Key Problem

I was recently playing games and this nasty windows logo key keep annoying me , cause i often accidently clicked it , and i start to search a solution to solve my problem, and found the following article in microsfot website, and it did work, hope this helps

CODE
http://support.microsoft.com/?kbid=181348
or in other articles, u can copy the following messages into ur notepad and save as *.reg, and use it..

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,03,00,00,00,00,00,5b,e0,00,00,5c,e0,\
00,00,00,00

How to Delete An "undeletable" File

Delete An "undeletable" File

Open a Command Prompt window and leave it open.
Close all open programs.
Click Start, Run and enter TASKMGR.EXE
Go to the Processes tab and End Process on Explorer.exe.
Leave Task Manager open.

Go back to the Command Prompt window and change to the directory the AVI (or other undeletable file) is located in.
At the command prompt type DEL where is the file you wish to delete.
Go back to Task Manager, click File, New Task and enter EXPLORER.EXE to restart the GUI shell.
Close Task Manager.


Or you can try this

Open Notepad.exe

Click File>Save As..>

locate the folder where ur undeletable file is

Choose 'All files' from the file type box

click once on the file u wanna delete so its name appears in the 'filename' box

put a " at the start and end of the filename
(the filename should have the extension of the undeletable file so it will overwrite it)

click save,

It should ask u to overwrite the existing file, choose yes and u can delete it as normal


Here's a manual way of doing it. I'll take this off once you put into your first post zain.

1. Start
2. Run
3. Type: command
4. To move into a directory type: cd c:\*** (The stars stand for your folder)
5. If you cannot access the folder because it has spaces for example Program Files or Kazaa Lite folder you have to do the following. instead of typing in the full folder name only take the first 6 letters then put a ~ and then 1 without spaces.

Example: cd c:\progra~1\kazaal~1
6. Once your in the folder the non-deletable file it in type in dir - a list will come up with everything inside.
7. Now to delete the file type in del ***.bmp, txt, jpg, avi, etc... And if the file name has spaces you would use the special 1st 6 letters followed by a ~ and a 1 rule. Example: if your file name was bad file.bmp you would type once in the specific folder thorugh command, del badfil~1.bmp and your file should be gone. Make sure to type in the correct extension.