ActiveX permissions are managed through a program called DCOMCNFG.EXE that should be in your Windows system directory. This is the same regardless of where you develop ActiveX components. Microsoft provides documents on how to use DCOMCNFG to configure security options for accessing ActiveX objects across the network. Here is a link to get you started: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/com/htm/security_4l7r.asp
Best Regards,
Chris Matthews
National Instruments