The FVWM modules in this directory (/usr/lib/fvwm) are for the
fvwm1 package, that is FVWM 1.24r.  Modules for the fvwm package (that
is, FVWM 2.xx) are found in the subdirectory with the appropriate
version number (such as 2.2).

The manpages for the 1.24r modules have an appended "1", for example,
FvwmAudio1.1x, to distinguish them from the FVWM 2.xx manpages.