This command is used to restore the desktop from a previously created desktop archive. The syntax is:
ARCRECOV x
where x can be 1, 2, 3 or X.
The reason for these numbers is that WARP's desktop archiving facility stores up to a maximum of 3 archives, plus its original files (X).
The current version of ARCRECOV does not display any usage instructions.
Source: The OS/2 WARP Survival Guide