We have a 32 bit app and installation that we have rolled out to clients. We're now working on the next version, but seeing that the Get Related Product call (which we pass the Upgrade Code GUID) doesn't find the previous version on 64 bit machines. I set the "Package Type" to x86 for the Get Related Product call because we have a 32 bit app. Is that not correct? How can I get this function to work correctly for 64 bit?