This error message is returned while communicating between a Visual Basic Application and an ArcView session:"Application using DDE did not respond to the System's Exit command."
Improper use of Visual Basic code.
Microsoft's Knowledge Base contains a document that explains this error. Click the Microsoft Search Wizard link below and search for the following string:
Application Using DDE Did Not Respond
The return page should contain document Q94955.
Get help from ArcGIS experts
Download the Esri Support App