• Make disk images, restore points, and backups of files and registry keys to repair your system if you fuck things up.
  • Browser: set default web browser for each individual user  
XPs default browser is a system wide setting. To set the default browser per user:

  • DNS: Don't cache failed DNS lookups  
To prevent storing 'negative' DNS cache entries ('site is inaccessible'):

1) Open regedit and go to HKLM\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters
2) Set the value of MaxNegativeCacheTtl to 0

If there's no MaxNegativeCacheTtl entry, add it yourself (choose DWORD)

  • DNS: Flush DNS cache  
Launch a run box or command prompt and run ipconfig /flushdns

"Flush DNS cache" script for your start menu, desktop, or quick launch bar:

  • DNS: Free DNS lookups  
Free DNS servers:

More info on

  • Faster internet  
1) Open the properties tab for your DSL/cable connection
2) Uncheck File and Printer sharing and Client for MS networks if you don't need this
3) Kill QOS too

Check for more tricks to speed up your internet.

  • Find your IP address and MAC addresses of your network adapters  
For your MAC address and IP address, launch a command prompt or run box and run:

  %windir%\System32\cmd.exe /k ipconfig/all

If you're behind a router, this command will show your internal IP address.

This is your IP address to the world outside:

Find out lots of details about IP addresses and domain names on

  • Firewalls and other restrictions: Bypass restrictions set by your network administrator  
To surf blocked websites use a www proxy site (feed URL into proxy website):

Public proxy list (feed proxy address into your browser or operating system):

Your own proxy on a free web server: phpproxy & cgiproxy

For more than just surfing (P2P, instant messengers etc.): iPIG

For full control and an encrypted way to the internet route your traffic through your own computer.
the easy way: Psiphon - Proxy+
the hard way: - your own www proxy

  • Routers: Port forwarding  
Many games, file sharing programs, personal web and ftp servers, and peer to peer TV apps work less efficient (or not at all) if you can't accept incoming connections.

Solution: forward the ports of your router.

Tutorials for almost every type of router:

  • TCP/IP: increase the half-open connection limit set by SP2  
Service Pack 2 limits the number of half-open connections to 10. A security measure that doesn't increase security at all.
It causes problems for programs that need many connection attempts, such as file sharing programs and P2P TV apps.
To repair the damage caused by SP2 use the connection limit patch in

More info:

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