How do you change the default version of Quartus that opens files?

[JFree1]

My company uses Quartus versions 17.1, 16.0, and 13.0sp1. My question is, how do you get Quartus related files, chiefly .QPFs, to launch by default with version 17.1? I have tried removing the default program in windows for certain file extensions and re-associating it with the 17.1 Quartus.exe, and also opening 17.1 first then clicking the files I want to open, but the default still ends up being 13.0sp1. The only way I can get those files to open with 17.1 is by using the file explorer within that version of the program.

The newest related question to this matter is found in this thread: https://forums.intel.com/s/question/0D50P00003yyQojSAE/setting-default-version-of-quartus-ii-in-windows-7?language=en_US

But it did not solve my issue.

I'm running this on Windows 10.

[Vicky1]

Hi,

Have you tried with Cygwin shell terminal?

Was it pointed to respective installer?

Best Regards

Vikas Jathar 

(This message was posted on behalf of Intel Corporation)

[JFree1 · Accepted solution]

I did try that, and the root directory was already pointed in the correct place. However, I got it to work by temporarily removing the quartus.exe for version 13.0sp1 from it's respective file folder, then launching a QPF and picking the correct association to 17.1 at the windows prompt. Why this wouldn't work through the windows default programs manager is beyond me, but it works now.