I have a file extension lets say .abc and i want it to be open with app1. The app1 was installed on the RDS server but .abc was not part of the file associated with the program. However the program can open .abc files with no problem. I can set it manually for each user by checking the "use this app for all .abc files" option but i want it to be for all users not just one at a time. I try using the GPO and Dism export method but with no luck. I got the xml file but i don't see the .abc file extension in there. Am i suppose to add it?
Any suggestions? Thanks.