I'm looking for something like Fluid (Mac OS X), for Windows. It's an app that lets you run a single browser window, as a standalone app. So I can have a Fluid 'app' each for say Fogbugz and Stack Overflow, and my normal browser activities don't interfere with them (shutdowns, crashes etc). To most intents and purposes they appear to be self-contained applications in their own right.
I run Fluid myself on my Mac and I'm looking for something similar for my partner to run on her Windows XP machine.
I'm half-tempted to drum something up myself in Delphi but I'd want it to use whatever the user's default browser is (eg Firefox, Chrome) and I'm not sure the amount of pain in trying to do that is worth my time - I'm not short of things to do! Much happier if I can just find something off-the-shelf to do it. :-)