PowerToy Calc to replace Calc

Hello,
I downloaded and installed powertoy calc from the windows website, and it works great. However, I have a multimedia keyboard with a calculator button and when I press it I would like the powertoy calc to run instead of calc. Is there a way to get the default calculator to be the new one?
Thanks

 

There should be keyboard options in Control Panel I think it is to change which buttons do what.

 

That didnt really work, but I installed some keyboard program from Logitech, although it runs in the taskbar and it's really not what I wanted, so if anyone has any other methods, please tell
Thanks

 

SweatyBanana has pointed you in sort of the right location. Logitech keyboards are typically programmable. You will need to open Logitech's keyboard application to specify which program is to run when you press that button. You will need to provide the path to the executable for the Powertoy Calculator...

I think you can access this option through that icon in the task bar...try double-clicking it or right-clicking it and seeing what options are available.