When I\'m building a VS2010 with msbuild from the command line, can I change the platform toolset to v90 (i.e. Visual Studio 2008 toolchain) from the command line, without e
The PlatformToolset is configured as part of a PropertyGroup for the configuration.
Application
true
Unicode
v90
If you want to change toolsets from the command line, you should add a configuration for each toolset (easily done using the IDE) and then call that configuration for the build.
msbuild %s.vcxproj /t:rebuild /p:configuration=VC90Release,platform=%s