Sorry for my bad english. I hope you understand me...
Try this
1 - Uninstall old VideoTools if it's not uninstalled
2 - Delete Matrox Video Tools folder in Program Files
3 - Delete following keys in the Registry
HKEY_CURRENT_USER\Software\Matrox\PC-VCR
HKEY_LOCAL_MACHINE\SOFTWARE\Matrox\PC-VCR
HKEY_LOCAL_MACHINE\SOFTWARE\Matrox\RainbowRunner
HKEY_LOCAL_MACHINE\SOFTWARE\Matrox\RRPath
4 - Restart PC
5 - Delete following files from C:\WINDOWS\system32
RRAPI.dll
RRIcm.dll
RRIcmExt.dll
rrvcap32.dll
5 - Try to install VideoTools 2.04.015d
Try this
1 - Uninstall old VideoTools if it's not uninstalled
2 - Delete Matrox Video Tools folder in Program Files
3 - Delete following keys in the Registry
HKEY_CURRENT_USER\Software\Matrox\PC-VCR
HKEY_LOCAL_MACHINE\SOFTWARE\Matrox\PC-VCR
HKEY_LOCAL_MACHINE\SOFTWARE\Matrox\RainbowRunner
HKEY_LOCAL_MACHINE\SOFTWARE\Matrox\RRPath
4 - Restart PC
5 - Delete following files from C:\WINDOWS\system32
RRAPI.dll
RRIcm.dll
RRIcmExt.dll
rrvcap32.dll
5 - Try to install VideoTools 2.04.015d
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