XOJO for Web on XP

I have downloaded Xojo and using it to play around creating web pages but it is crashing so often it is pretty much unusable.
I have not read the compatibility stuff but is it not compatible with XP sp3?

I wouldn’t use the IDE on XP. There’s a known issue that only affects the IDE on XP.

see http://documentation.xojo.com/index.php/System_requirements

The IDE really isn’t compatible with XP. The apps you make are compatible, though.