This command line don't work !
Keepass.exe and database.kdb are in the same directory.
c:\example\keepass.Exe c:\example\database.kdb : Work
Works for me. The password box pops up, enter the password and off you go.
Do you get any messages, errors etc?
It wont work unless you are in the C:\example directory when entering the command.
I ran it from C:\Windows with the files in D:\temp.
Just tested it from C:\example, runs fine and creates KeePass.ini in c:\example.
What message do you get when it doesn't work?