CPBO allows you to properly unpack/pack your server PBO files. It is our recommended program for packing/unpacking.
To download, follow the donwload link below and scroll to the bottom where it says "Download from FTP #1:" then click "Arma Tools"
Extracts and creates PBO files.
Run from windows explorer to associate it with directories and PBO files, after which you
can extract PBO files by double clicking, and create PBO files by right clicking a directory.
Also can be used from console. The PBO path prefix is saved to and read from a special file
called $PBOPREFIX$ in the directory.