When I clicked SDK Manager on Program Files or run it in cmd, nothing happened. I did:
Had the same problem and tried everything I browse in several forums till I found a clue, then finally solved the problem.
Basically I installed the SDK and worked ok, then my Windows Vista crashed, on restart I run SDK again but it only opened a CMD window which closed immediately.
So here's a list of useless things I did:
At this point I was seriously considering start learning objetive-c was not a bad idea, finally I did this:
it WORKED !! I'm not sure though if is necessary to uninstall SDK (since I had again to download all packages & platforms) and just clear the temp folder.
Hope this helps.