Opening a independent window in v2.49B

Hi Guys,

I have two monitors of which I would like to open up a independent window (defined as a window not within Blender interface) so I can drag and drop into my second smaller monitor. The funny think is I accidently hit a short cut key that enabled me to do this. Before this I thought you can only do in the newer v.2.5, but was nicely surprised it can be done in earlier versions.

Can somewhat suggest to me how I can open this floating window?

Many thanks in advance.

I never knew you could detach windows, but I’ve spanned my Blender window across two monitors & adjusted everything accordingly.