If you get the error:

>[0004ck] could not find LIBCUPL in ENVIRONMENT
> >total time: 0 secs
> >
> >Fatal CUPL errors encountered ... program aborted!

then you will need to carry out the following procedure:-

1. Open c:\autoexec.bat in Notepad or other text editor

2. Add the line below anywhere in the autoexec.bat file:

set LIBCUPL=C:\Program Files\embres\PLDKit\cupl\cupl.dl

NOTE: If you change the default install folder then this line will have to be modified like this:

set LIBCUPL=[ADD YOUR INSTALL PATH HERE]\cupl\cupl.dl

3. Restart computer

4. Run PLD.EXE again

If you still get problems, your install path may be too long. Try re-installing to C:\PLDkit