How to make MSI patch?

[DaveC]

We use MSI Factory to make MSI installations.
And we use Visual Patch to make patches.
We want to instead make a "MSI Patch",
and have it be able to run without administrator.
Does MSI factory have capability to make an MSI patch?
Are there any instructions about this?
Thanks,
Davec

[Ulrich]

It is currently not possible to create patches directly using the IDE of our product. Instead, you have to create a patch file manually using two finished MSI installers, or the respective WiX source files for both projects.

Using two MSI installers, you could use the procedure as explained here.

Using the WiX files, you can follow the steps as explained at the WiX web site:
http://wix.sourceforge.net/manual-wix3/patching.htm

Ulrich