If you modify the ProgramFilesDir data value, Microsoft cumulative updates are not installed correctly.
This behavior affects the MSxx-xxx cumulative updates, like MS06-006.
To workaround this problem, I have scripted CumUpdate.bat to reset the default just before installing a cumulative update, and to set it back to your value after the update is installed.
The syntax for using CumUpdate.bat, both before and after an update, is:
CumUpdate
CumUpdate.bat contains:
@echo off setlocal if exist %SystemDrive%\YourProgramFilesDir.reg goto afterUpd regedit /a "%TEMP%\YourProgramFilesDir.reg" HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Currentversion @echo.REGEDIT4>%SystemDrive%\YourProgramFilesDir.reg @echo.>>%SystemDrive%\YourProgramFilesDir.reg @echo.\[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Currentversion\]>>%SystemDrive%\YourProgramFilesDir.reg set f1=find /i "ProgramFilesDir" set f2=find "=" for /f "Tokens=*" %%i in ('type "%TEMP%\YourProgramFilesDir.reg"^|%f1%^|%f2%') do ( @echo.%%i>>%SystemDrive%\YourProgramFilesDir.reg @echo Your %%i ) @echo.>>%SystemDrive%\YourProgramFilesDir.reg @echo.>>%SystemDrive%\YourProgramFilesDir.reg del /q "%TEMP%\YourProgramFilesDir.reg" @echo.REGEDIT4>%SystemDrive%\DefaultProgramFilesDir.reg @echo.>>%SystemDrive%\DefaultProgramFilesDir.reg @echo.\[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Currentversion\]>>%SystemDrive%\DefaultProgramFilesDir.reg @echo."ProgramFilesDir"="%SystemDrive%\\Program Files">>%SystemDrive%\DefaultProgramFilesDir.reg @echo Default "ProgramFilesDir"="%SystemDrive%\\Program Files" @echo.>>%SystemDrive%\DefaultProgramFilesDir.reg @echo.>>%SystemDrive%\DefaultProgramFilesDir.reg regedit /s %SystemDrive%\DefaultProgramFilesDir.reg del /q %SystemDrive%\DefaultProgramFilesDir.reg endlocal goto :EOF :afterUpd type %SystemDrive%\YourProgramFilesDir.reg regedit /s %SystemDrive%\YourProgramFilesDir.reg del /q %SystemDrive%\YourProgramFilesDir.reg
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