Create SxS manifest from managed COM assemblies

Question

Hi,

I have a C# dll that implements COM. Is there a way to configure the project to create the SxS manifest for this dll (exposing COM information) and embed it into resources. As I understand, running the mt tool as post-build step could be an option. But there are 2 problems: 1. manifest created with mt does not expose the Prog_ID 2. my assembly is strictly named assembly that is signed. Does the sign process occurs aftes post build step or before?

Thanks

Zaky