Unhandled Exception E0000001

I have a visual lisp application that uses some of the ActiveX functions for Architectural Desktop. Whenever I run the application and then close autocad I get the following error:

"Exception in C:\Program Files\Common Files\Autodesk Shared\AecArchBase40.dbx ARX Command"

"Unhandled Exception E0000001 (e0000001h) at address 77E73887h"

I use the following command to access the activex objects:

(vl-load-com)
(if (= nil vlarc-aecCeilingConditionAutomatic)
(vlax-import-type-library
:tlb-filename "aecxarchbase40.tlb" :methods-prefix
"vlarm-" roperties-prefix "vlarp-"
:constants-prefix "vlarc-"
)
)

This is loaded from a file that Autocad loads when it starts up. I have it load then because I have different lisp functions that are accessing it at different times and I don't want to have to keep reloading it. The thing is when I don't run my application, I don't get the error even though the previous command is loaded no matter what.

I have run this application on 4 other machines and get the same error with all of them.

Is there something I can do to prevent this?

 

ADT version?
Seems that there might be some question about which AecArchBase4x.dbx you
need to reference.

You should also give the ADT-cust newsgroup a fair shot before cross-posting.

Architectural Desktop. Whenever I run the application and then close autocad I get the
following error:

because I have different lisp functions that are accessing it at different times and I
don't want to have to keep reloading it. The thing is when I don't run my application, I
don't get the error even though the previous command is loaded no matter what.

 

I am not even referencing the file that it says is crashing. I am referencing the .tlb file. That must be referencing this .dbx, so I am not sure what I would need to switch in order to use a different file.