FMX finds (all) of the installed tasks mapped to a common xxx. 

Operating Systems: RSX11M+/vectored, P/OS

Calling sequence: 

'run fmx' will prompt with 'COMMON NAME='
You have to enter the name of a common and FMX will list all 
task mapped to this common.

Note: FMX is build to work with vectored RSX11M+ executives.
At startup, FMX does a 'GIN$ gi.vec' call to get its address
entries. If this fails (carry set) it is supposed to run on
an P/OS System. Then the address values will be copied from
static cells in the task image. See also fmx.bld