assign file extension to a certain application

[Kevin]

first example worked no problem for me on win10

second example had to change slightly to get it to work

Code:

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FileTypeRegister "vig" "vigfile" "Vig File" "C:\Program Files\Notepad++\notepad++.exe" "notepad++.exe ''%1''"
str s="test"
s.setfile("$desktop$\test.vig")
run "$desktop$\test.vig"