Under Tools -> Configure -> Events in Writer there are two events regarding the 
closing of a document: Document close and Document is closing (in German i.e 
Dokument schließen and Dokument wird geschlossen. 
The first is executed before the user is asked whether he is sure and whether 
he wants to save and the second is executed when the document is really closed. 
In my case, I want to implement the second but here is my problem: Writer seems 
to dispose the basic code before the macro is executed thus throwing an error 
upon closing the document. 

To reproduce try the following: 
- Create a new Writer document 
- Create a macro. 
  Sub DocumentIsClosing 
     msgbox "DocumentIsClosing" 
  End Sub
- Tools -> Configure -> Events -> Document is closing -> Assign --> select the 
unnamed document -> Standard -> Modul1 -> DocumentIsClosing --> OK --> OK 
- save the document 
- close the document --> Error in scripting framework:  
  BasicProviderImpl::getScript: no script!

Apparently the scripts are removed, before the actual document is closed.

This would work if the code would be placed in a library outside the document. 
But in my scenario described in http://www.oooforum.org/forum/
viewtopic.phtml?p=176559#176559 this is not practicable. I need the code to be 
inside the document being closed.

My suggestion would be to keep the scripts until all relevant events have been 
fired. Macros in a document should no rely on funtionality in an external 
library.

Background:
Upon opening the document I assign listeners to form controls that have to be 
removed upon closing. If this removal isn't done, OOo crashes.

P.S. If this isn't the correct component for the issue, please move it. I 
wasn't very sure about which component to choose.