Wireless not working

Problem: The network connection setting have become corrupted. Restore Defaults

IntelPRO software report "No adapter etc".

Solutions found on web to repair and unistal IntelPRO software didn't help, nor Start - Run:
regsvr32 netshell.dll
regsvr32 netcfgx.dll
regsvr32 netman.dll

or
winmgmt /regserver
regsvr32 "%Windir%\system32\netshell.dll" regsvr32 "%Windir%\System32\hnetcfg.dll" regsvr32 "%Windir%\system32\wbem\wbemprox.dll" regsvr32 "%Windir%\system32\wbem\wbemsvc.dll" regsvr32 "%Windir%\system32\wbem\wbemcore.dll" regsvr32 "%Windir%\system32\wbem\fastprox.dll"
proposed by
http://www.winhelponline.com/articles/6/1/Error-The-network-connection-settings-have-become-corrupted-when-configuring-Windows-Firewall.html

Only this helped:
Insert Windows XP instalation CD,
Start - Run (or windows key+R);
sfc /scannow