I just got the stable version of blender 2.43 and I set it as the default file extension thingamajig, and it doesn’t seem to be able to open the file when double clicking on the icon. I can open it by choosing file+open, but I can’t double click on the file. It says unable to open and it doesn’t load. This question has probably already been asked, but I could not find it while searching.
I am using the windows version.
have you upgraded to vista? 
kidding. What OS? Did you have 2.42 installed previously? Where did you install it to? If Windoze, what does your file explorer - tools - file types thingy say it uses to open .blend files, and is that where Blender is insstalled?
EDIT:My last response was really bad here is an edit of what I said originally. I was trying to be funny but I failed tremendously.
I have windas XP SP2. I have not gotton windoze bista. I have used blender since 2.40. So yes, I have used 2.42 before. I have the file extensions thingy set correctly. It at least worked with 2.42.
sometimes humor does not translate well, i know. so does this help? I think the clue is somewhere in the fact that the double click versus the manual open. What about if you right click on a .blend - is Open one of the options, and what does it try to run? Sorta like the old old path problems…
I just did the same thing on my dad’s laptop that I am using, and it worked fine. Once I go back to my other computer, I will check the folder options settings.
Yay! it works!!! I just installed it again.
