The commercial company Altiris has a user community at http://juice.altiris.com/ where you can find info on the application of a layer of virtualisation between applications and the Operating System. This allows you to install an application in a separate layer, allowing you to activate, deactivate and even reset the layer. This is very useful for trying out several applications, demo versions, incompatible applications and mainly anything you want to be able to deinstall without leaving any trace in your system. I can recommend this software when experimenting with several of the applications mentioned in this blog. In fact, there is a user community offering (legal) full applications prepared as a virtualised package, allowing you to install-deinstall them at any time. Visit http://www.svsdownloads.com . Windows only... although Mac users suffer less from these problems
Info on BIM, CAD & 3D software for architects and students