Need help with LUA injector

Hello, I need help to get lua injector working, ive tried many none works. I found possible problem but could anybody help me? Its my virus protection, it removes lua injector v6 even though its not a virus or something. It removes injectors EXE file in like 5 seconds when i have extracted it. I have microsoft security essentials. Ask if you need any more information. Sorry about the grammar, english isnt my native language.




If downloaded it from this http://code.google.com/p/mafia2injector/downloads/list




Please Help Me!


 


 




EDIT: Sorry it may be my bad, it said its Trojan or something. Do you guys know where to get clean version?