Hi i cant associate/open a wave file in Samplitude 15 by right clicking in files nor by open with and choose a program. i can find the sampl exe file but it wont associate. any ideas
That's a settings within Windows (i.e. the Windows Explorer). The specifics depend on what version of Windows you're using, but should be pretty much the same procedure in all current/recent Windows versions. (I'm on an XP machine right now.) Look for the "Folder Options" in the "Tools" menu of Windows Explorer (the file browser) and go to the "File Types" tab. Here you can change the relevant settings for file extensions and the associated programs.
I hope this helps.
P.S.: You need to make sure to associate this with the executable file, just in case this is the problem here. Look for the "MusicStudio.exe" in the program installation directory of Music Studio 15.