Extending Ben's idea below (assuming .net). Create a class / assembly that
wraps the spawning of hcc. As far as the consumers of this hcc assembly will
know, its 100% programatic (unless you tell them the truth :) The same thing
can be done in a CPP class.

The other thing would be to host msbuild and just call that
(programatically). Then call hpp from an msbuild script. Then you get all
that msbuild provides for free, you wont have to spend time writing code
that you can already piggy back for the cost of downloading the .net
redistributables.

Conan