Warning!!!!

this is how the extrawork.dll works. blizz detects ur using teh hax or doesnt.. doesnt matter which, thet transfer a file in2 ur diablo 2 folder, and any files(hacks etc.) attatched to diablo or are using diablo get detected by extrawork and blizz gets notified by it, it send Them your IP Address, your acc details and CD-Key and which ever they want to ban for your breaking the EULA(End Users License Agreement). i hope i put it out easy enuff to understan for u sov

You're wrong there.
They may NOT for ANY reason put ANYTHING on your pc.
Doing that , they would break a number of laws , and get the FBI at their asses.
I dont think a huge company like blizzard would risk that would they?
Wat they CAN do however , is sending packets INGAME , (eg:the packets blocked by anti-detection) , and see if they return.
The detectable part of maphack , is looking at other players equip , blocking socketing , etc..
It is very hard for blizzard to find out you use maphack if you use none of those features , and only full map display.
That might aswell been discovered by yourself.