Have you make any modification in conf file?
If not, try if it works with empty wallet (rename your wallet.dat for some else)
Then we know is problem in your computer or wallet or conf file.
- i have a new wallet.dat in roaming dir (i moved my original one out there)
- my microcoin.conf is unchanged since february 11th and worked fine till today, but even when i move that file out, it has no effect... the crash is still there...
i also re-unzipped the program files folder freshly from the archive (from february 21st) .... so the files should be ok too....