Windows 7 64 and 7 32 both working fine, please tell us error or/and place log file
the debug.log is
microCoin version v1.1.1.0-gunit-beta (187)
Using OpenSSL version OpenSSL 1.0.1e 11 Feb 2013
Startup time: 01/12/14 08:45:39
Default data directory C:\Users\Administrator\AppData\Roaming\microCoin
Used data directory C:\Users\Administrator\AppData\Roaming\microCoin
dbenv.open LogDir=C:\Users\Administrator\AppData\Roaming\microCoin\database ErrorFile=C:\Users\Administrator\AppData\Roaming\microCoin\db.log
Bound to [::]:4444
Bound to 0.0.0.0:4444
Loading block index...
I see you have Startup time: 01/12/14
Are you sure you have new wallet?
1. Delete all from your roaming/microcoin/ folder (exept wallet.dat if you have coins)
2. Download wallet (see link on first page)