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There are no any requirements for list<T> element type.

You can use List class instead of STL vector. Regarding STL/CLR containers, I don't have experience using them, and really don't know why they are there... Possibly to give the same syntax for C++...

Use managed collections instead of STL. Managed replacement for STL map is Dictionary:
http://msdn.microsoft.com/en-us/library/xfhwa508.aspx