You must put quotes around the path as such

SET LIB="c:\picstuff\cstuff"
SET INCLUDE="c:\picstuff\cstuff"


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> From: Robert Lunn <robert@RDD.NECA.NEC.COM.AU>
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: MPLABC 1.21  HELP!!!
> Date: Wednesday, February 26, 1997 4:05 PM
>
> >It cannot seem to find the include and library files. There is a
> >brief mention in the help file about new "environment variables",
> >but it doesn't say where to find them, create them, or even what
> >exactly they are.
> >
> >This is what the Help File (sic) says :
> >
> >" To install MPLAB-C, enter Windows, run the file SETUP.EXE on the
> >" distribution disk, and follow the prompts. Note that MPLAB-C will
> >" create two environment variables, INCLUDE andLIB. The INCLUDE
> >" environment variable gives the default directory for included
> >" files. For more information, refer to the #include directive.
>
>         Well, this seems to answer your questions.  Environment
>         variables are found in the environment ;), they're created
>         with the DOS 'SET' command by definition, and as to what
>         these particular environment variables are...
>
> >" The LIB environment variable gives the default directory for the
> >" libraries. If these environment variables are not specified, the
> >" path is searched for the appropriate files.
>
>         By extension, the 'INCLUDE' variable points to the directory
>         containing the include files.
>
>         It looks as though the setup program should have modified
>         your 'autoexec.bat' file to define the new environment
>         variables.  Perhaps your autoexec is non-standard?
>
>         Try adding the following lines (suitably modified for your
>         system) to your autoexec.bat file:
>
>                 SET LIB=c:\picstuff\cstuff\l;..\l;.\l
>                 SET INCLUDE=c:\picstuff\cstuff\h;..\h;.\h
>
>         I'm _guessing_ that these variables operate like the PATH
>         variable, in that they take a sequence of path names to be
>         searched.
>
>         In each case it's a typical system setup to have a 'common'
>         directory (c:\picstuff\cstuff\l), a 'project common' dir-
>         ectory (..\l), and a 'local' directory (.\l).
>
> ___Bob