I tried to install Inventor Series 10 today and got an error message "Microsoft WSE 2.0 Runtime - Error 1001.InstallUtil.Lib.dll: Unknown error in CorBindToRuntimeHost (0x80131700)." I found that the solution to this was to uninstall Microsoft .Net Framework 2.0.
Then I got another problem. Several errors saying: "Installer Information -
Error 1406. Could not write value to key...". In this case I found some
Knowledge Base articles about it. Macromedia Flash Player was involved as one of the solutions: