threed32.ocx is a module that contains six Sheridon 3D control objects that can write in character 3D.
This file should be found at C:\WINDOWS\SYSTEM32. You can search the internet and it is free downloadable.
Regards,
Shawn
szhong@coade.com
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Shawn Zhong
CADWorx & Analysis Solutions
Intergraph Process, Power, & Marine