I've successfully been using XAMPP 1.7.3 on a USB Key for over a year, accessing several "projects" (folders off the root htdocs dir) on the device and using PHPMyAdmin and SQLBuddy to modify MySQL tables/data.
Recently (June/July 2010) when I run it (on Windows XP btw) it launches just fine... but if I attempt to access any page within htdocs, I get an instant BSOD (Blue Screen Of Death).
AFAIK, I haven't changed a singe file on the USB key, although the Windows PC it runs off of, might have been updated (I'm not sure)
Has anyone else experienced this?
I only plug it in and run xampp once in a while
It maps to my E:\ if that matters at all
I run Apache on port 81 (as I have typically got other stuff running on port 80)
Apache and MySQL will run fine for ages - if I don't hit any pages
I don't run either as a service, and no other options are launched