Closes all dynamic data exchange (DDE) channels opened by Word. This method doesn't close channels opened to Word by client applications. Using this method is the same as using the DDETerminate method for each open channel.
Syntax
expression.DDETerminateAll
expression Optional. An expression that returns an Application object.
Remarks
If you interrupt a macro that opens a DDE channel, you may inadvertently leave a channel open. Open channels aren't closed automatically when a macro ends, and each open channel uses system resources. For this reason, it's a good idea to use this method when you're debugging a macro that opens one or more DDE channels.