CrossePAC is command line driven. Each CrossePAC command starts with the name of the program, CPAC, followed by a series of parameters. If you type CPAC without any parameters, you see the following short help screen:
<command> = Add | eXtract | DELETE | List | ListMore | Replace | View | reFormat | Print | Help | ? <options> = Format={Text | Ascii | Binary} Blksize=nn eXCludechars=<character list> +/-Subdirectories +/-UsePath +/-UseDevice +/-Overwrite MessageLevel={All|Warnings|Errors|None} OutPath=<pathname> StorePath={Full|Recursed|None} <PACfile> = Name of PAC file to use. Wildcards not permitted Extension of .PAC will be assumed <file> = [<filespec> | IndeXfile=<filename>] -<file> = filename or wildcard to exclude <character list> = List of characters or decimal equivalents specified as \"\\nnn\" where nnn is the decimal value of the character <filespec> = Explicit file name or wildcard specification <filename> = Explicit file name