Alternatives to COM+

_wintermute writes "For various reasons, I have been examining M$ COM+ Services under Windows 2000. It all seems rather impressive (which smacks of heresy, obviously). COM+ basically integrates COM with Microsoft's Transaction Server, and handles concurrency & threading, security, transaction management, object pooling, and queuing (very handy for a whole range of Internet services). Everything is integrated into W2K and it all seems to work very well. Which seems too good to be true. I have been grinding away at it for months without even a single failure. I was wondering if similar services exist on other platforms and what they were like? Are there other platforms that capture this much functionality? Do we actually need all this COM+ stuff anyway?"