New instance of matlab opening every time I double click a matlab file

Hi Every time i double click a matlab file (*.m, *.mat or *.fig) in an explorer windows, a new MATLAB instance starts, even if another one is already opened.

I read the answer here.

The matlabroot folder, however, is on a shared network drive for which I don't have administrator right (and I cannot ask for them).

To solve the issue I looked at the answer here.

I copied the pathdef.m file in my userpath folder. However the issue is still present. How can I solve it?

I'm using MATLAB 2015b

[Stephen23]

+1 for a clearly asked question. Compact, but includes relevant info and links.

Answer 1

[Harish Ramachandran]

Hi Luca. Did you try the second part of the solution provided in the link ?

Please run the file exchange code and restart MATLAB.

https://www.mathworks.com/matlabcentral/fileexchange/51165-matlab-file-association-fix

This page explains how to re-register the .MAT extension, but you can follow the same instructions for other file types.

[Luca Amerio]

The installation is on a shared drive, so it doesn't appear in the list of available programs installed when I click "Set your Default programs". However clicking in "Associate a file type or protocol with a program" the .m files are associated with the MATLAB Starter Application (see screenshot.

[Luca Amerio]

This didn't work, but the answer by Azad (which hadn't been selected as a solution) worked perfectly.

Thank you for having me going back to the link and pay more attentions to secondary solutions :)

[Harish Ramachandran]

Great. I meant to suggest the same thing. Pasted the wrong link. :) Glad you got that sorted out. Edited my answer as well now.

[Luca Amerio]

Accepted your answer

[Rina Blomberg]

The link to "Azad" is incorrect. Azad's solution works!! Correct link to this comment: https://se.mathworks.com/matlabcentral/answers/93468-why-is-a-new-instance-of-matlab-opened-when-i-double-click-on-a-matlab-file-in-windows-explorer-even#answer_301876