I'm looking for a agent procedure to set adobe dc as the default pdf reader instead of edge
Because the ASSOC command, whether via CMD or Powershell, requires elevated permissions to run effectively, it will not be possible to do this via Agent Procedure.
Unfortunately, Windows doesn't have a means of elevating permissions programmatically. The /runas command doesn't let you pass the password in its parameters, and even if it did, you would have the UAC to contend with.
The command itself is pretty simple:
This will give you name of the filetype to use in your command
Finally this command would do it:
ftype File Type="absolute-path-to-application" "%1"
I'm sorry this went so long without an update, but I figured I'd chime in!