[wpkg-users] InnoSetup, uninsXXX.exe and "uninsXXX.dat is corrupted"

[le dahut]

Hello,

I'm fighting with QuickTime Alternative Lite and its upgrade. The 
package I have is like this :
     <install timeout="300" 
cmd='"%SOFTWARE%\quicktime\QT_Lite_%short_version%.exe" /verysilent 
/noreboot' />

     <upgrade include="remove" />
     <upgrade include="install" />

     <remove timeout="300" cmd='%COMSPEC% /C if exist "%progfiles%\QT 
Lite\unins000.exe" "%progfiles%\QT Lite\unins000.exe" /SILENT' />
     <remove timeout="300" cmd='%COMSPEC% /C rmdir /S /Q 
"%PROGRAMFILES%\QT Lite"' />

The problem is that sometimes there is a "QT Lite\unins001.exe" and in 
this case, executing "QT Lite\unins000.exe" returns a popup error :
  "C:\Program Files\QT Lite\unins000.dat file is corrupted. Cannot 
uninstall"

Obviously WPKG hangs until timeout...

In some other cases I have "QT Lite\unins004.exe".

Is there a way to check existence of the "highest" unins00X.exe and 
executing only this one ?

(this apply to all InnoSetup, I could upgrade by only install new 
version but I'd like to remove the previous version first as for some 
softwares it is mandatory)