How does COMsource compare to COM on Windows NT?
COMsource is based on the Windows NT 4.0, Service Pack 3 version of COM. It has been enhanced to work with Window NT 4.0 service packs 4, 5, 6a and Windows 2000. COMsource provides the same basic functions, libraries and tools as COM. COM applications written for Windows NT are easily ported to any of the COMsource reference implementations. From a user perspective, the functionality of COMsource is the same as COM on Windows NT — the data types are the same, the wire format is the same, the APIs are the same.