Build merge module without Devenv from .vdproj

I read quit a few Stackoverflow Questions about building mergemodules via commandline but all of them were accepted when either somebody suggested to use devenv for compilation or use Dark to create wix-files from existing msi files.

Considering the following:

• VisualStudio isn't installed on the buildserver I have to use.
• I am using nant + msbuild to compile the solutions
• I would like to compile mergemodules from .vdproj (because Visual Studio detects dependencies automatically)
• and create a msi setup from multiple mergemodules

... how can I build the merge modules from commandline without devenv and without loosing the comfort of automated dependencie resolving for mergemodules in visualstudio? Maybe there is a nanttask for it I haven't found?

MSBuild doesn't support Visual Studio deployment projects, my advice would be to bite the bullet and go with Wix.

Perhaps VS2010 will use MSBuild schema for vdproj files? I'm guessing no, but couldn't find any links.