To remove Xara 3D, you should remove the Xara 3D link from your Start menu by right clicking the 'Start' button on the taskbar, selecting Explore, then Programs, and deleting the Xara 3D link. Then, taking care to first copy any data files you wish to keep to another location, you can delete the Xara 3D directory and files within.
Although Xara 3D does make modifications to the Windows 95 Registry, erasing Xara 3D manually should not cause problems and it is not recommended that users attempt to modify their Registry manually."