The proDAD-program has installed as plugin into the NLE and appears as effect but it can´t be used.
Sometimes Mercalli, Heroglyph, VitaScene etc. can also install into host applications which are not part of the plug-in compatibility list.
In the majority of cases it´s about previous versions of editing solutions, such as
Adobe Premiere 6
Canopus Edius 3.x
Pinnacle Liquid 6
Sony Vegas 5
and others and previous ...
In those cases the use as plug-in is just impossible because these older generations or better their plug-in interfaces doesn´t provide needs which are required by the plug-in.
The only possible remedy is to keep the nonlinear editing software (NLE) up-to-date and to use proDAD products as plug-in there.
Reliable compatibility information we always offer on the each product website at www.prodad.com