Many CAD users change the aliases of common commands in the ACAD.PGP file. The location of this file has been moved around over the years and finding it has always been a problem.
The quickest way to access the PGP file is within AutoCAD.
1. Tools pull-down menu
2. Customize
3. Edit Program Parameters (acad.pgp)
This will open the file within Notepad. All you have to do is make modification to the command aliases.
For example, many people change the COPY alias from CO to just C.
Note:
1. You cannot have two alias with the same letters. For example, you cannot use C for the COPY and for the CIRCLE commands.
2. Any changes made to the PGP file will only take affect aftere restarting AutoCAD.

Never mind my dimension style question. I just figured it out using Design Center.
Posted by: Aaargh | September 18, 2009 at 01:02 PM
Does anyone know how to get my dimesion styles that I set up in one drawing to become available in another drawing? I don't see an "import/export style" in the dimension style manager dialog box.
Thanks
Posted by: Aaargh | September 18, 2009 at 12:52 PM
Thank you, Villegas! Your comment just fixed my alias annoyance. Even Windows couldn't find my acad.pgp file since I'm running Windows on a Mac through Fusion.
Posted by: Hambone | April 10, 2009 at 09:59 AM
Very Thanks Sir, u solve my big problem for acad.pgp file i found it last 2 months but no result. but today your formula is solve my problem.
I Very Thankful to you
Posted by: Adeel Mughal | December 06, 2007 at 02:22 PM
YO THIS IS REDICULIS.. SORRY FOR THE BAD SPELLING.. N/E WAYS U WANT TO OPEN THE ACAD.PGP FILE RIGHT? THEN COPY THE FORMULA BELOW AND PASTE IT ON THE COMMAND PROMPT. -- (startapp "Notepad" (findfile "acad.pgp")) --
AFTER U PRESS ENTER IT SHOULD OPEN. SAVE UR CHANGES THE GO BACK TO THE AUTOCAD AND TYPE -- REINIT -- CHECK PGP FILE AND CLICK OK. U SHOULD BE GOOD TO GO. FOR ANY QUESTIONS EMAIL ME AT BIYEL_101@HOTMAIL.COM
Posted by: VILLEGAS | June 20, 2007 at 11:55 AM
Bla bla bla you didn't tell us where is the fu... file ACAD.PGP
Posted by: Mario | June 12, 2007 at 04:50 AM
DON'T HAVE TO RESTART FOR INITIALISEIT DE ACAD.PGP JUST WRITE REGINIT AND CHECK THE BOX OF PGP FILE THEN ENTER!
Posted by: MARAMU | March 28, 2007 at 04:11 AM
Hi there again,
I'm terribly sorry, I made a typo!
The command should be REINIT.
Best regards,
gerard bakker
Posted by: gerard bakker | February 06, 2007 at 12:27 PM
Hi there again,
I'm terribly sorry, I made a typo!
The command should be REINIT.
Best regards,
gerard bakker
Posted by: gerard bakker | February 06, 2007 at 12:27 PM
Hi there,
In the artile .. it said: "Any changes made to the PGP file will only take affect aftere restarting AutoCAD."
You don't have to restart AutoCAD if you issue the command REININT and choose PGP File. Thu the file will be reloaded without restarting AutoCAD
I hope I coudl be of help.
Best regards,
gerard bakker
Posted by: gerard bakker | February 06, 2007 at 12:25 PM