Module not working?

I’m using the tmysql module and it’s working fine on my main desktop but on my other one, tmysql.escape(string) returns a nil value instead on a string. The same code works on my desktop. No errors are shown. I’m not sure if ANY tmysql.* functions are working.
No “Module/File not found” error is showing. When I removed gmsv_tmysql_win32.dll from the bin folder, i got the error that the module is not found.
I have no idea why it isn’t working…do I need some .NET redist?