some one can hook dll to the main please

i dont understand how to hook dll to main after i watch some videos of ollydbg and i try stud pe and its didnt work can some one hook for me please

https://mega.nz/#!8cFlCJjD!q5w9jHpkqeeO3efmoU6tntyMZuAfNcl5bJBf8YEyNn8

what is this .DLL exactly? the function?