Tested one more time on win pc where Blender had never been installed or unpack and run.
1st - download testbuild pack, unpack it in user’s home and run it, configure.
Blender is here: C:\Users\x estbuild-blender-2.71-48eac58-win32
Config folder gets created here: C:\Users\x\AppData\Roaming\Blender Foundation\Blender\2.71
Next, i download and unpack another 2.71: C:\Users\x\blender-2.71-8c3daab-win32
Config in C:\Users\x\AppData\Roaming\Blender Foundation\Blender\2.71 GETS OVERWRITTEN.
What i suggest is to create: C:\Users\x\blender-2.71-8c3daab-win32\2.71\config
and C:\Users\x estbuild-blender-2.71-48eac58-win32\2.71\config
As a result each 2.71 will have it’s own \config folder and it’s own settings. No other 2.71 will overwrite these; if there is no
…\2.71\config it will go to \AppData…
It is fine when there is only one 2.70, 2.71 or 2.72 but it gets dangerous when there are several of these present - if one gets some love from devs and this messes up something you easily run into issues.
Cons - you have to configure each separately - copy settings could lead to this type of errors.