use WINSCP to get into any directory or filebox. once you have entered the directory you will see all your apps with .desktop . and in the case of osso files yes you have to put osso before them. not all of the apps have osso with them. just few of them. i recommend downloading and install WINSCP on your computer/laptop and goind to the directory . it will clear everything . p.s we are all noobs here so dont feel hesitation asking any thing :P