The information in this article applies to product: e-Work 6.1.2.4
Issue
When upgrading e-Work 6.1.2.4 to e-Work 6.2, the following Windows Installer error message is displayed:
"The upgrade patch cannot be installed by the Windows Installer service because the program to be upgraded may be missing, or the upgrade patch may update a different version of the program. Verify that the program to be upgraded exists on your computer and that you have the correct upgrade patch."
Resolution