I have recenly delivered a patch based on my Basic MSI project. I released my first patch in the form of update.exe Now I want to create a second patch to update both my base install and my first patch. I am using the Patch Design in IDE and I'm trying to add my first update.exe as one of my "Previous Setups" but this file is not getting decompressed so my patch is not building correctly. I get this error 6481: The Target Image '..\Patch1.msp' does not exist. Can anyone help me with this? Thank you in advance.
Windows Installer patches are always the difference between one or more MSI packages. Since a patch only contains information on the differences between MSI files, it itself can't be used to generate further differences.
The list of previous setups is intended to contain references to MSI files. If you are building a patch to target the base MSI and the patched MSI, the previous setup list would contain your base MSI package and the upgraded MSI package used to build the first patch. The latest setup would point to the very latest MSI package.
