I want to find some file association that "open with.." can find at XP/Win7/Win8, I try to find "PhotoShop".
First, I find the HKEY_CLASSES_ROOT.jpg
PerceivedType = image \OpenWithProgids => jpegfile and Paint.NET.1
So, I find HKEY_CLASSES_ROOT\SystemFileAssociations\ .jpeg
And it still not found anything about Photoshop.
Is my searching rule right? or Windows use another rule to find PhotoShop command line?
Now, if I right click .jpg file and click "open with..". It would show many programs can let us select, just like PhotoShop, Paint, Paint.NET, Windows Media Center, Windows Photo Viewer, etc.
I need to find the rule that OS can find file association with .jpg. Actually, I want to define this rule that can find all these application and work fine at Windows XP/7/8.