Problem With All Injectors All :(

when i download any injector and extract (i downloaded like 7 injectors from the first page!! alse i downloaded swifthack injector same problem)

and run the injector tells me

i need frame work 4.030319

and i downloaded it but it didnt work on my pc idk what to do i tried alot of injectors all gives me the same error plz help me aslo if u know any injector that doesnt need frame work plz post it here plz

if you visto or win7 run the injectors as administrator