The first book that describes how Microsoft's Component Object Model (COM) can be supported on a computer system other than Windows. Drawing on the groundbreaking work of the port Compaq COM / DCOM to the OpenVMS and Tru64 UNIX Alpha platform, Microsoft explains how COM Beyond COM standard to help companies integrate their applications in a heterogeneous computing environments. This book details an innovative COM support is now native on Tru64 UNIX and OpenVMS, and reveals how developers can exploit COM COM on OpenVMS and Tru64 UNIX on to make portable software components that run virtually unchanged on OpenVMS, Tru64 UNIX, Windows NT, Windows 2000, and other major computing platforms. Microsoft COM outside business benefits and technical highlights COM implementation of distributed and portable applications, especially versus Other strategies and technologies such as CORBA and Java. This book explains APIs, utilities, libraries and run-time environment the developer must understanding to create COM applications to OpenVMS and Tru64 UNIX.