TlbView   
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The TlbView lets you examine type information for ActiveX controls, Automation servers, MTS objects, and other COM objects. This information contain in type library. This is either stand-alone file (.TLB) or integrating into the EXE or ActiveX library as a resource.Key TlbView futures: looks like internal Delphi/C++ Builder type library editor; opens many type libraries at the same time; contains list of registered type libraries with quick filtering.