Can I install both .net 2.0 framework and .net 4.0 framework in one PC ?

Now Microsoft Visual Web Developer 2010 Express has been installed in my PC, but when I run older asp.net project , the system require to install .net 2.0 framework. I'm afraid that new .net 4.0 project maybe meet trouble after I install old .net 2.0 framework in my PC.



There won't be any problems. They can both be installed on the same PC, without one messing up the other. They install to different folders.

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