Let's get to it
1st of all you'll have to check whether you've updated the game to version 1.7.you can check that from the bottom right of the multiplayer game screen
If not you'll have to update it.you can get those updates from this torrent
http://kat.ph/call-of-duty-4-modern-warfare-patch-1-6-and-1-7-t4137346.html
Now click here and download the crack which will let you host the game as well.extract it & paste it in the game folder
Now open the iw3mp.exe.Go to options->multiplayer options->enter key code & enter one of these following key codes
JPJW WDYU TT4U 4TE8 E167
MUMW PG8Q DDL2 8L42 5E74
MYUS WWMS MUUW W4D2 30F3
4WYL JWDP JTWU P8E2 05B9
D4WQ TM42 YGP4 2LWQ 2EBF
MWYY SPWT QDLG UGTQ 14FB
YGWL MTEQ QPWQ UDTG BC14
TQJJ MUGW S2PQ E4Q8 6958
UTJJ G2EL E8LP SGDP FA51
YEYM STUE L4MD PU8G 2CDA
GDQ8 4S2T G2QT 4DLT A6F8
8TSM 2LYM SDGE 2TJM B0AB
PDGE UYQ8 S88Q QES2 0BF6
Now that's it!! You should be able to play & also host the game online in "Gameranger"!!. If you got any problems lemme know & thx for reading :)
If not you'll have to update it.you can get those updates from this torrent
http://kat.ph/call-of-duty-4-modern-warfare-patch-1-6-and-1-7-t4137346.html
Now click here and download the crack which will let you host the game as well.extract it & paste it in the game folder
Now open the iw3mp.exe.Go to options->multiplayer options->enter key code & enter one of these following key codes
JPJW WDYU TT4U 4TE8 E167
MUMW PG8Q DDL2 8L42 5E74
MYUS WWMS MUUW W4D2 30F3
4WYL JWDP JTWU P8E2 05B9
D4WQ TM42 YGP4 2LWQ 2EBF
MWYY SPWT QDLG UGTQ 14FB
YGWL MTEQ QPWQ UDTG BC14
TQJJ MUGW S2PQ E4Q8 6958
UTJJ G2EL E8LP SGDP FA51
YEYM STUE L4MD PU8G 2CDA
GDQ8 4S2T G2QT 4DLT A6F8
8TSM 2LYM SDGE 2TJM B0AB
PDGE UYQ8 S88Q QES2 0BF6
Now that's it!! You should be able to play & also host the game online in "Gameranger"!!. If you got any problems lemme know & thx for reading :)