Retrobat giving dll error when opening, help me

I installed the new version of retrobat, but when I open it it says it's missing mmfs2.dll and I already have vc++ installed and direct x, can anyone help me?

Hello

Somes files are missing. Check your antivirus.

I downloaded the missing dll and extracted it into the retrobat folder, but now it won't open, it just flashes a black screen and won't open, could you help me?

It's not necessary to open a post each time. You can use this one.

BTW, what is your antivirus ?
Have you try to reinstall totally Retrobat on another location ?