Scar scripts don't know what program to use?

[Runescapian321]

Well, all of the scripts I have downloaded say they're .scar, but when I double-click on one it doesn't open in Scar 3.12. The first time I opened one it told me to either select a program from a list to open it, or search the web for the appropriate program. I clicked select a program from the list, but Scar 3.12 wasn't on there. How can I fix this?

Btw, when I had 3.11 they were opening in 3.11 even though I had both 3.12 and 3.11. After I uninstalled 3.11 then what I said above happened...

[GrapeII]

When you see the program list you can pick from, hit the browse button and manually search for scar.

[Here]

Go to the top menu: Tools -> Associate .scar files.

You're done.