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Installation problems 

The user 'Administrator' should install LUSAS Modeller. It may be necessary after installation to manually specify the folders used by LUSAS Modeller and LUSAS Solver for temporary file storage. By default, following the Windows convention, these will be of the form "C:\...\Administrator\...\temp". However unfortunately this folder will not be available to other users, and so should be modified using the Configuration Utility.

If you encounter a "Windows Installer" message:

Windows Installer could not find some files that are required for LUSAS to run correctly. Please run ActiveX Control Pad Installer "C:\LUSAS150\Third Party\Scripting\ActiveX\setuppad.exe" when the current installation is complete

Or if you encounter a message that you need to install third party scripts (ActiveX), or an error when running LUSAS (for example when going to Attributes>Material>Material Library):

Unable to create one or more controls

After clicking OK you may then get a second message similar to:

'Microsoft Vbscript runtime error: object required: 'cbo material' at Line ##.' 'Microsoft Vbscript runtime error: object required: 'cbo template' at Line ##.'

Active X Control Pad is not installed automatically during the installation of LUSAS. Usually it does not need to be installed because for many machines it will have already been installed where MSOffice or certain versions of Internet Explorer have previously been installed.

It sounds as the ActiveX has not been previously installed on your PC. To resolve this, you can install it by double-clicking on C:\LUSAS150\Third Party\Scripting\ActiveX\setuppad.exe. For Windows 7, you will need to right-click on this file and run in compatibility mode, otherwise an error regarding Windows Cabinet Self-Extractor may encountered if the operating system. You may then be prompted to "Retry with recommended settings" or "Ignore". You can still proceed choosing to retry with recommended settings and once installed successfully the ActiveX errors should be cleared.


You must have a "computer administrator" user account to activate and register Windows as well as to create user accounts, change your computer's settings and install new software. To check your account type, go to:

Start > Control Panel > User Accounts. 


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Any modelling, design and analysis capabilities described are dependent upon the LUSAS software product, version and option in use.