A newer version of this article is available for Rhino 5.
Missing toolbars and no plug-ins loaded on Vista.
A small number of people have reported that installing Rhino V4 (SR2 and newer) on Vista results in no plug-ins and no toolbars loaded unless they are logged in and running as the Administrator. This has been more common on Vista Home Premium systems, but has been reported on all flavors of Vista. Most people do not report this problem and we have not been able to duplicate the problem here in the Rhino Development Team.
Users report that if they turn off User Account Control (Control Panel - User Accounts), and temporarily disable any antivirus and system protection software before running the Rhino installation again, they solve the problem. After reinstalling and running Rhino once, you should restart your antivirus and system protection tools. Also, you can turn UAC back on if you want.
Added 5 Mar 2009 - John Brock
To be used after upgrading cards and drivers.
When installing Rhino 4.0, a message appears that says “please wait while the installer finishes determining your disk space requirements”. This dialog box never disappears.
The Windows Installer engine tries to determine if there is enough disk space on all your drives to install Rhino. For some reason, this process takes a very long time, or never completes. The real cause is buried somewhere in Microsoft's Windows Installer engine.
Run the installer from the command prompt:
The Index tab of the Rhino Help or BonusToolsHelp window is blank for low-privilege user logins in Windows 2000.
This is a permissions problem that interacts with a bug in Windows 2000. Here's how to fix it without changing the permissions on Program Files folders.
Question: I tried to uninstall Rhino 4.0, but an error occurred and Rhino could not be removed.
Answer: Manually remove Rhino 4.0.
Question: What do I need to do to get my Rhino 4.0 upgrade to install?
Answer: The Rhino 4.0 upgrade installer will install if one of the following is true. It is checked in order:
Problem: This can be caused by a corrupt installer cache on your computer.
Solution: Follow the instructions in the article Manually uninstalling Rhino 4.0.