I'm not entirely clear on what you are trying to compile. Is it an existing project? Or your own project, using what's in salvodemod4sysfd4free.pjt as a guide?
Just for kicks, is there a salvo.h in salvoinc? Is there a salvoinc folder at all? What's in it?
In general, failure to find salvo.h is due only to a missing include path to salvoinc. You are finding salvocfg.h, which, in turn, includes salvo.h, so that's good.
According to the dump you've given us, -Ic:salvoinc is the right command-line switch. So I'm kinda stumped as to what's wrong.
Please post a full dump from the "Build Results" window in MPLAB when you get it installed and try to make the salvodemod4sysfd4free.pjt project.
And please make SURE that salvo is really installed in c:salvo or d:salvo or wherever.
Regards,
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