WiX installer that always installs to "Program Files" directory on both x86 and x64

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? Al开发者_运维问答so how would you then assign a property value from ProgramFilesFolder or ProgramFiles64Folder depending on the earlier 64 bit environment test.

Any help is appreciated!

MSI doesn't support 32-bit packages installing to 64-bit directories.

While it's true that MSI's support here is weak, you might want to read the following article and comments then decide for yourself how you want to proceed.

http://blog.deploymentengineering.com/2008/01/even-developers-are-concerned-about.html

I just found this, I tried your exact idea and no dice. You can't actually access ProgramFiles64Folder unless you are running a 64-bit installer.

I've given up and am just installing my 64-bit component to ProgramFilesFolder. It's not that nice aesthetically but it works :)

I was able to install a x32 package with WiX into the \program files folder usig the idea from http://blog.deploymentengineering.com/2008/01/even-developers-are-concerned-about.html which is to:

1 - use ProgramFiles64Folder for the directory

2 - change the setup project's settings to add a compiler switch. Its on the 'Tool Settings' tab and you add '-arch x64' to the compiler settings.