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At LiveLoop we've gone insanely deep into COM to build real-time collaboration for PowerPoint, and while the interface is powerful there are mysteries at every

• josteink 13y ago
  At LiveLoop we've gone insanely deep into COM I can say this too and we do stuff not even Microsoft thought was possible. while the interface is powerful there are mysteries at every level. The interfaces are indeed powerful (not to leave out annoyingly inconsistent). That said, there are only mysteries when you go oh so far. If play by a few safe rules, you should be mostly safe unless you have very long lived processes which starts mixing COM code with other code digging beneath the API for things which isn't otherwise possible. It can be argued that both the best and the worst part of the .NET Framework is how it makes COM interop seem so utterly seamless. It's bound to land you in a trap sooner or later.