Some friends get trouble after upgrade to VS 2010 they, can't see other frameworks on the specific list. So, to help them I put here few important links.

If you have see only framework 4 then you must download 3.5 sp1.
It will cover all the framework.

3.5 Sp1 :-> [231.49 MB]

http://download.microsoft.com/download/2/0/e/20e90413-712f-438c-988e-fdaa79a8ac3d/dotnetfx35.exe

Other frameworks are as follows,(you may distribute with your app, if needed)

3.5 :-> [197.11 MB]

http://download.microsoft.com/download/6/0/f/60fc5854-3cb8-4892-b6db-bd4f42510f28/dotNetFx35.exe

2 Sp1 :-> [23.61 MB]

http://download.microsoft.com/download/0/8/c/08c19fa4-4c4f-4ffb-9d6c-150906578c9e/NetFx20SP1_x86.exe

2 Sp2 :-> [23.84 MB]

http://download.microsoft.com/download/c/6/e/c6e88215-0178-4c6c-b5f3-158ff77b1f38/NetFx20SP2_x86.exe


If any body can found that any link will change then I request him/her to put here the new link to support others....

Thank you!