I have a .NET application that runs on both x86 and x64. I'd like to have a 32 bit WiX installer that will work on both platforms but I'd like it to install to /Program Files/ rather than /Program Files (x86)/ on 64 bit operating systems.

How do you go about doing this?

Update:

My idea was to assign the ProgramFilesFolder or ProgramFiles64Folder value to my own property, depending on whether it was a 64 bit environment or not, and then use that property value on the directory.

I have very little experience with WiX so if this idea is even possible I have no idea. If it is what would you test on to see if it is an x64 environment? Also how would you then assign a property value from ProgramFilesFolder or ProgramFiles64Folder depending on the earlier 64 bit environment test.

Any help is appreciated!