Start a workflow when the status of a document is changed

[Werner Kößl]

Hi all,
 
i want to start a workflow or just a standard task when somebody changes the
status of a document in the customizing -> "Define document types -> Define
document status"!
 
I can insert a standard task which starts when i change the status (field:
"workflow task").
Furthermore i have to activate the event type linkage of object type DRAW,
event CHANGED and receiver type DOKST.
Now the standard task only starts when i change the status of the document!
 
In the standard task i want to set the status of the previous documents to
archived (AR).
Does anybody know if there is a standard task from SAP to do that or does
anybody have an idea how to do that?
 
Thanks in advance!
Werner.