generative modeling for Rhino
can't install new version
but i have uninstalled old version long time.....
Sorry for the problem. Generally I have seen a similar message to this when the initial installation was done from a user account with administrator privilege/access, and then subsequent install attempted with non-admin account. If you think this is the case, log-in with admin account, and try uninstalling from control panel.
The other suggestions is follow the instructions here http://answers.yahoo.com/question/index?qid=20070317202704AAF4bx2 so that windows does not know about previous installation. The microsoft clean up utility I have used in the past on a stubborn computer. I will help advise further to resolve this if you do not have success with the above.
Thanks for your paitience,