The following comments are applicable to the U.S. ORIGINAL RETAIL game ONLY, I do not currently know if other country versions will render a different result. However, based on the results I have seen thus far and after examining the crack code, etc. I seriously doubt how these "NO-CD Cracks" can work for their specified purpose, that is, to run the game without a CD.
After a FRESH NEW (clean register, etc) installation of MW4 (NO patches, cracks), then applying the BK addon (NO patches, cracks), finally applying the IS-MechPak and proceeding to replace the MW4.EXE and MW4x.EXE with the Deviance "NO-CD Cracks", found at the Siedler site and other locations, the same were found NOT to work, the game WILL ask for the CD after applying the cracks and it will NOT settle for a "backup" either, unless, the same is a true 1:1. So, obviously these "no-cd cracks" appear NOT to be no-cd cracks nor backup cracks for use with non true 1:1 backups. In other words, they do NOT work, at least, with a U.S. ORIGINAL RETAIL game.
BTW, I personally do not care for nor require a no-cd crack, I have originals, true 1:1 backups and can make my own no-cd if need be, as well
I am posting this to help anyone who is not having any luck with these "no-cd cracks" and perhaps not due to them doing something wrong or being stupid, etc.
To eliminate confusion and supplement my findings, here are the MD5 and version info for the ORIGINAL and CRACK files tested by me, if someone has gotten these to work using a U.S. ORIGINAL RETAIL game which match the MD5, version, etc below, although I seriously doubt this will be the case, please say so.
[MW4 ORIGINAL FILES (MD5 and Version)]
MW4.EXE
da15b88af8c076e455ec3bb0dd34fe3c (Original)
v01.06.11.0220 (Original)
c5c7a0003784e4db1b2dd840647978ff (with BK)
v01.20.07.2403 (with BK)
3463adb809946fefbdf60bf6f9ded976 (with IS-MPak)
v01.30.04.1908 (with IS-MPak)
[MW4 BK ORIGINAL FILES (MD5 and Version)]
MW4X.EXE
52d53baa7ee01c67aa31e3e8d3583587 (Original)
v45.05.10.0701 (Original)
d1e3648dd421024e0c4eb6f2a6feb55b (with IS-MPak)
v45.30.04.1908 (with IS-MPak)
[CRACK FILES (MD5 and Version)]
MW4.EXE
f4662baca4c322a88bb8c1dd559df8cd
v01.30.04.1908
MW4X.EXE
b00babc8988a7900482db3a5b396dac9
v45.30.04.1908