Hi,
For the new version of our product I am using WiX to replace the
previous installer. The new version is installable alongside the old
one. The product includes a driver that with WiX I am installing with
DIFx.
I have found if I install the new version of the software and then
uninstall it, it uninstalls the driver and stops the old version of the
software from running. I would therefore like to suppress the DIFx
installation if the driver is currently present, but still install the
actual driver files into a subdirectory of my application directory.
I've set up a file search to locate an existing copy of the driver in
[SystemFolder]drivers, but I can't find a way of controlling the DIFx
custom actions from within WiX based on the property that I set. If I
modify the generated MSI file using Orca and set conditions on
MsiProcessDrivers and MsiCleanupOnSuccess then the MSI does what I want,
but obviously a way within WiX would be useful.
Thanks,
John
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