Why do I get various registry errors when trying to run Model Calibration Toolbox 4.1 (R2010b) on Windows Vista or Windows 7?

When I execute MBCMODEL to start Model Calibration Toolbox, I see a popup GUI with the following error message:

 MBC has attempted to install the required system files but has encountered error.

 Error installing C:\Program Files\MATLAB\R2010b\toolbox\mbc\mbcguitools\ocx\system\mscomct2.ocx

 Error accessing registry for C:\Windows\system32\mscomct2.ocx.

 Could not increment registry counter.

 Error installing C:\Program Files\MATLAB\R2010b\toolbox\mbc\mbcguitools\ocx\system\mscomctl.ocx

 Error accessing registry for C:\Windows\system32\mscomctl.ocx.

 Could not increment registry counter.

 Error installing C:\Program Files\MATLAB\R2010b\toolbox\mbc\mbcguitools\ocx\system\mwmbccontrols.ocx

 Could not register the file C:\Program Files\MATLAB\R2010b\toolbox\mbc\mbcguitools\ocx\system\mwmbccontrols.ocx

 Error running DllRegisterServer function.

Answer 1

[MathWorks Support Team]

This issue is being caused by Windows UAC (User Account Control) blocking MBCMODEL and CAGE from installing ActiveX controls. It will happen on all Windows Vista or Windows 7 installs with UAC enabled. If you switch off UAC the first time when starting MBCMODEL/CAGE, it will install the activeX controls, then you can switch UAC back on.