How to Reset / Recover / Change Forgotten Administrator Password in Windows?

Useful tip from wwwAskVG.com
http://www.askvg.com/how-to-reset-recover-forgotten-windows-nt-2000-xp-2003-administrator-password/

Control panel does not open in Windows xp

It looks like the RunDLL file is corrupted. Which service pack you are using? If your service pack is not updated try updating the service pack so that the RunDLL file can be updated.

You can also do the otherway. Copy working RunDLL file from someone's working PC from the location find'c:\\windows\system32\rundll32.exe and overwrite it in your find'c:\\windows\system32\rundll32.exe. Try it in safe mode.

Windows 7 networking fails to connect to samba SCO PC

Windows networking fails to connect to the Network Space 2 due to the version of samba on drive. Windows 7 defaults to using NTLMv2 for its security policy. The drive uses Samba v.3.0.9, which only supports NTLM.

To fix this, the LAN Authentication level must be reconfigured using the "secpol" program to log in.

Click Start, then Run (or press [windows button] + [R] on the keyboard), then type "secpol.msc" This should bring up the Security Policy system window.

On the left, select Local Policies > Security Options.

On the right, scroll down to and double-click on "Network Security: LAN Manager Authentication Level" Right Click your mouse, Change the setting from "Send NTLMv2 Response only" to "Send LM & NTLM responses".