First of all, have you installed your mysql correctly? Second, so you have tryed more repacks that one?
I can recommend you to compile your own repack, but there are many that don't know how to do that, i will release a guide soon.

First of all, try using like WAMP or XAMPP as your mySQL instead, and i guess you have opened all required ports right? if you got a router.

Now, Have you extracted the repack to C:\ ? If not, that can be a problem.
And it says it cannot find errmsg.sys , many users get that problem, my guess is that you haven't extracted the repack to C:\ , try that.

I have seen alot users get this problem when using the AC Repack.


If that dosen't work, do as above, try using another MYSQL , like WAMP or XAMPP.