I got a .net 3.5 solution, with many projects, i am trying to add .net 4 dll to use the code in them, but some of my namespaces don't work.
I can't upgrade the 3.5 solution yet as time is an issue and it means retesting the entire thing. I really need to add this component to the 3.5.
Alas .net 4 dll cannot be rewritten to 3.5.
Is this possible?
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