I\'ve got several AssemblyInfo.cs files as part of many projects in a single solution that I\'m building automatically as part of TeamCity.
To make the msbuild scrip
Try changing the @ to a % as below
This creates a call for every entry in AllAssemblyInfos.
Have a look at this article too, should help.
http://blogs.msdn.com/aaronhallberg/archive/2006/09/05/msbuild-batching-generating-a-cross-product.aspx