Bob,

I obviously didn't read your message closely enough. Mscomctl.ocx is an ocx of the Microsoft common control libraries. Do you include any of the available merge modules for the common controls libraries when building your installer? Do all of the other machines have certain versions of MS Office installed that the XP machine does not? I've run into various issues when I've built installers for projects that utilize these controls and the versions on the target machines are older, or it doesn't have them at all.

regards,

JE

>I am using multiple controls from a third party provider that apparently utilize classes in the mscomctl.ocx file (treelist and listview controls). I have multiple computers that have used these controls successfully, however, one machine (a Windows XP machine) did not have this file. I got the error '...not properly registered on this computer.' when trying to instatiate these objects. I copied the mscomctl.ocx file to the windows\system32 folder and used regsvr32 to register the control.
>
>Now I am getting the 'Class is not licensed for use' error. How can I resolve this issue? I use InstallShield Express to create setup files for this application. Do I just need to add a control library from there, and if so, which one? Any help is appreciated.
>
>TIA