[Help request] Crc.dll? Making system.mrs :mad:

Ok im stuck, i made a system.mrs, compiled it, now ive been told to put it in Gunz folder, which ive done, now i need to inject crc.dll...
WHERES CRC.DLL?
just wondering because im following this tut:
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stuck on number 21

Im new and have searched everwhere for crc.dll so i have the only alternate to post this.
I cant find it anywhere, id appreciate some help!

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there is a crc.dll and a bunch of other dll's and lots of injectors and .mrs editing tools in that hack pack :D