I have two things to help you A is if your talking about using a hack, B is if your trying to make a hack your self.
A. Sorry that you are having trouble. However this is the incorrect section for this. This section is used for discussing hack development. For help with using hacks go here. As a fix for your problem you will need to download missing dll files, and inject them or put them in your combat arms folder.
B. What Development Language? , and is this on Compilation or Injectation?