Features of Comet:

• STL friendly and exception safe (strong guarantee) wrapper classes for interface pointers, BSTR, VARIANT, SAFEARRAY, DATE and CURRENCY.
  
• Makes COM programming look and feel like real C++ programming.
  • Server example.
  • Client example.
• Automatic translation of COM errors to C++ exceptions.
• Automatic translation of C++ exceptions to COM errors.
• Automatic generation of struct wrappers.
• Nutshell generation - A kind of implementation inheritance in COM
• STL friendly registry class.
• ATL compatibility. You can implement both ATL and Comet components in your project.
  
• Easy implementation of STL based enumerations.
• No ATL macro mania - only one macro is needed in Comet.
• Automatic implementation of connection points.
• Automatic implementation of ISupportErrorInfo
• Support for implementing aggregateable component.
• Support for aggregating components.
• Support for aggregating the free threaded marshaler.
• Support for creating COM EXE servers.
• And much more