calling commands from loaded arx file using lisp function (command)

this has been giving me many sleepless nights...

how do I go about calling a command which is loaded through an arx file with the AutoLisp function command?

For example:

(command "_amthole2d")

which is a command in Mechanical to create a 2D hole.

And if there were any variables to this command, like diameter or position, I would like to pass these on to the command.

for a bit of more information, what I am trying to accomplish here is to start the command without typing the command in the command line.

In another thread http://www.cadtutor.net/forum/showthread.php?58831-Torient-Command-and-Lisp Lee Mac gave a solution to call an express tool command by creating his own command line function. I did try to implement this but somehow it didn't work. Could there be a work around to this?

What you are doing should work iff it is actually an arx/dll command and not a LISP.

You could make this really easy and just edit your acad.pgp