mysql - How to run asp.net 4.0 websites on asp.net 3.5.? -

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i have application developed in 4.0 asp.net. , want make changes using 3.5 asp.net.

is possible? or have download 4.0 version.

i modified web config file according 3.5 version........but not work.

it doesn't .net 3.5 .net 2.0, .net 4 significant update. it's better install .net 4.


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