Problems building strangely named VS.NET solution configuration

[rboutilier]

My latest VBP Project includes a step to build a VS.NET solution. The solution has the following 8 language-specific configurations:

[en-us]|Win32
[zh-cn]|Win32
[fr]|Win32
[de]|Win32
[it]|Win32
[ja]|Win32
[pt-br]|Win32
[es-mx]|Win32

Only the English configuration currently works, so I need to make sure it's the only one that gets built. I am selecting [en-us]|Win32 from the Configuration(s) list box on the Project/Solution tab. Unfortunately, because the configuration name begins with the '[' character, VBP seems to be interpreting it as a regular expression and giving the following error:

Solution configuration '0|Win32' not found.

Does anyone know if there's a way to force a literal string as a solution configuration?