thank you - that was it. The theKompany.rom, did kept it with the related applications package but did not install (configure) any icon when the application ipk is installed. This gave me the wrong impression.
It just works fine when invoked from the command line. And when the related generated file is selected from the file list, the default media player pops up and plays the file
Thank you for your guidance my friend. Hope this will be helpful to other theKompany.rom users on 5600.
Best regards
Zafer