HOW TO INJECT Plural DLLs?

i want to inject miller.dll and crosshair.dll to japanese ava,,but,ican't.
Is not there any good method?
Because I am a Chinese, English is clumsy

Well..Find the Exe..And use a injector like PerX to inject it to that certain exe.

thanks to reply .
I tested it in AVAPublic.exe, but there is only an effect of one DLL

It is AVA.exe