The PF_patch404m.exe file you have requested: Official Patches / v404 / Pacific Fighters v4.04m Patch - 21.8mb is not available. Perhaps try browsing all files for the game IL-2 Sturmovik: 1946 and upload any files you want to share or are missing. This is the only information we could locate:
READMEPacific Fighters v.4.04 (4.04m)WarningThe current version 4.04 (4.04m) is not compatible with the previous versions of the sim when playing over the network (Online). Both the server and client must have the appropriate versions in Version 4.04m patch for a merged version FB+AEP+PF.