I have an iRIVER 890 ifp (mp3-ogg player) and found the drivers for linux but I cannot use it with gui only cli, it has a program for windows but I think you understand why I am posting this.

For me to upload music files to my mp3 is kinda giving me a headache because I have to write the command and the full path of the file and the path to the folder of my player.

I know that there is a way to insert a command to the right click of the menu of KDE but where is that way?

I don't won't to build any interactive application, I just want to righ-click on my music file and upload it.
As for the other commands, I don't care I can use the cli easily.

Check out Aaron Seigo's tutorial on adding service menus in Konqueror. That should give you all the information you need.

Thanks for the info, that was exactly what I needed!