How to build all Release targets of a mixed C#/C++ Build?

[Statler6]

We have more than 200 VS2008 solutions, about half of them C++, the others are C#. I have them all in text file and build them in a loop. We want to build only the Release targets.

The default target configuration in a C++ project is "Release|Win32" while it is "Release|Any CPU" for C#. Is there a way to set the Configuration property of the MakeVS2008 step so that it matches both targets?