Hello all, I have a question about using DDE to launch a file in an existing application when double-clicked from explorer. I'm trying to use the built-in windows functionality for doing this by setting the application and topic keys in HKCR\my_file_type\shell\open\ddeexec. I also have HKCR\my_file_type\shell\open\command set up to launch my python script if windows can't find the application through dde ( i.e. it's not currently running). The python script create a server and registers the system topic as the very first thing it does. When I double-click a file of this type in Explorer, I get an error dialog saying that "windows cannot find ' filename.ext' Make sure you typed the name correctly...". Has anyone else been able to open a file in a running application this way?
Thanks, --Matt
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