I havn't had any problems, though i have only used it in the fsx 737, i just installed and it worked and havn't thought about it much more.
Please note: (off the website)
* to install pmSounds simply run the Setup program and follow the steps you see on the screen, the program will create its own folder and a subfolder containing the sound files.
* pmSounds might not run with some sound cards when used on the same PC as FS
* pmSounds should not be installed within any of the FS folders, it runs independently from FS, on the FS computer or on a computer in a network using WideFS
* pmSounds requires FSUIPC
Hope That helps,
