Did anything changed on your computer since Skype was working? You can also try to use Windows System Restore to revert your Windows to condition before Skype started crashing.
i just fixed my problem with starting up skype,i loged in,and when i restart skype i cant login anymore,and i don't know how to "Restore"...
Please see- http://www.sevenforums.com/tutorials/700-system-restore.html
07-08-2012 20:31 - edited 07-08-2012 20:32
You may undo system restore.