However, the difficulties involved in getting either of these technologies to work over Internet firewalls, and on unknown and insecure machines, meant that normal HTTP requests in combination with web browsers won out over both of them.
[4] Microsoft, at one point, attempted to remediate these shortcomings by adding an extra HTTP transport to DCE/RPC called ncacn_http (Network Computing Architecture connection-oriented protocol).
Its source code is available, along with full and complete documentation, sufficient to use and also implement an interoperable version of DCOM.
[12] As part of this initiative, an implementation of the Distributed Component Object Model (DCOM) was added to OpenVMS Alpha.
[15] A similar implementation of DCOM was added to Digital Unix as part of the AllConnect program.