Help me with c++ some errors please..

Hey guys&staff i need some help from you guys i receive errors from injecting my self made hack.

i made the hack with: Microsoft visual C++ 2010 Express.
i just add some addies.

when i start injecting it with perx i receive this:

Succesfully (1/1) injected and then i receive the error:

C: \ ........ / Desktop \ New hack.dll is not suitable for windows or it contains an error. try installing again using original installation media or contact your system administrator or software vendor for support.

This above here is translated with google...

here a screen from the error:



and a another error when i coded a hack it says succesfull
i dont know if it is enough pls give me some info how to code i start codeing now for 10 min o.O



This img it says the hack is succesful when i try to run the dll on a injector it says its an error:
The screen above..

That's not how u code a hack, ask someone with c++ knowledge, because I don't have so much knowlegde, but i am sure that that's not how u code a hack...