As most of you can tell by my sig I have been BORGED
by 2.57 and thus far haven't reverted.
Now for those of you who have Windows (such as my brother) there is a tiny registry hack that will allow you the option to open .blend files in 2.57 but default to 2.49b. This is assuming you have both 2.49 and 2.57 installed on your HD.
To do this manually, you need to run the regedit.
open the tree -> HKEY_CLASSES_ROOT -> blendfile -> shellNote:
If blendfile doesn't exist look for .blend
Here add a new key Open with 2.57
then add another inside named command
add a string with a data value: "C:\Graphics\blender-2.57\blender.exe" "%1"
The quote marks are very important on this one and the path should reflect where you installed 2.57, then close out.
Now when you double click any blend file it will default to the older 2.49 until the time comes you uninstall it. When you right click a blend file you will see an option to Open with 2.57
Now this is the exported reg hack I placed on my brother's PC. Should you decide to import this into your Windows make sure you change the file paths first:
Windows Registry Editor Version 5.00
@="Blender .blend File"
[HKEY_CLASSES_ROOT\blendfile\shell\Open with 2.57]
[HKEY_CLASSES_ROOT\blendfile\shell\Open with 2.57\command]
I am hoping my brother will enjoy his gift.