Many users can got one of this system messages:
There was a problem sending the command to the program.
Windows cannot find the file, Make sure you typed the name correctly, and then try again.
Cannot find the file (or one of its components). Make sure the path and filename are correct and that all required libraries are available.
These are not actually errors …
This problem occurs due to Dynamic Data Exchange (DDE) feature. DDE is a type of communication protocols which is used by Windows to open certain filetypes which require this protocol for communication between source and target programs.
DDE mechanism is used to prevent unnecessary opening of multiple instances of a program if one instance of that program is already running in background. So basically DDE helps Windows in saving computer resources so that you get better performance from your computer.
In my case the error message is shown only once and you’ll be able to open the file in second attempt or each time you try to open the file.