Change Windows Build Tag

[eminem_rh25]

I have looked on google and looked on multipule forums but I can't figure out how to change the build tag....

Does anyone know how to?

[Aegis]

All of the version modification info you need.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion]
"SubVersionNumber"="a"
"ProductName"="Microsoft Windows XP"
"CurrentVersion"="5.1"
"CurrentBuildNumber"="2600"
"BuildLab"="2600.xpsp1.020828-1920"
"CSDVersion"="Service Pack 1"