I have a very old program that I have no control over. It launches a filetype with its default application like this(I cannot modify this code):
LET Err (SHELL_EXECUTE 'open' (FIX_MESG '"{1}"' File_name) '' '')
^^The above code works, so long as that filetype isn't associated with ClickOnce.
The old program is 32 bit, the OS is Windows 7 64
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