nTo determine
what service packs have been applied to your system, you can use one of the following techniques:
nEnter
WINVER from command prompt to view an About Windows dialog box
nSelect Help, About Windows from the menu bar of any native tool such as My Computer or Explorer
nUse
the Registry Editor to view the CSDVersion value in the HKEY_LOCAL_MACHINE\SOFTWARE\Micro-soft\WindowsNT\CurrentVersion