@Bonnie yes, i'm on Windows, thanks for the explaining!

@raf924 said:

@ashishbansal http://doc.qt.io/qt-5/qdesktopservices.html#openUrl it's still available. Why would you think it was not? or did you know it was but wanted an alternative anyway?

Sorry, I din't know that it's still available.
I was searching for opening a local directory in qt and found somewhere calling it as "deprecated" solution.

Anyway Thanks :)

Yes there might be, the current Qt version is 5.5.0 so you are using an older version. Can you test with 5.5 to check if you still experiencing this ?