When opening QuickBooks Statement Writer (QSW), you get the following error installing the update: The installation package is not supported by this processor type. Contact your product vendor.
QSW looks for a registry key (WOW6432Node) to determine if the operating system (OS) is 32bit or 64bit. However, if 64bit capable machine is running a 32bit version of Windows, that registry key may be present in the registry without any values. This causes QSW to attempt to run the 64bit installer and results in the error message: The installation package is not supported by this processor type. Contact your product vendor.
Intuit recommends more than one solution for this problem. The first solution may solve your problem, or you may need to try all of them to resolve the issue. For best results, perform the solutions in the order shown.
Solution 1: Skip updates
Solution 2: Force QSW to not check for updates
You can edit the iswprefs.ini file to force QSW not check for updates