Remove Wgatray.exe

Official method by Microsoft
First Method
1.Launch Windows Task manager
2.End wgatray.exe process i task manager
3.Restart Windows XP in safe mode
4.Delete Wgatray.exe from c:\windows\system32.
5.Delete Wgatray.exe from c:\windows\system32\dllcache
6.Lauch RegEdit
7.Browse to the following location:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\Current Version\Winlogon\Notify

8. Delete Wgalogon and all its contents.
9. Reboot Windows XP.
or download Wgatray.exe
1:open it
2:it shows so message
3:click ok
4:you r done
I tried and this works !!!!