FOR /R %%a IN (*.sln) DO msbuild %%a /p:Configuration=%1
FOR /R %%a IN (*.sln) DO msbuild /p:Configuration=%1 INSTALL.vcproj
FOR /R %%a IN (*.sln) DO msbuild /p:Configuration=%1 PACKAGE.vcproj
FOR /R %%a IN (*.sln) DO msbuild %%a /p:Configuration=%1
FOR /R %%a IN (*.sln) DO msbuild /p:Configuration=%1 INSTALL.vcproj
FOR /R %%a IN (*.sln) DO msbuild /p:Configuration=%1 PACKAGE.vcproj