Are you using the Microsoft Enterprise Library? [closed]
It's my opinion that the enterprise library is over engineered for most things. No, we don't use it, but most of our projects are short term high volume web sites of a promotional nature.
+1 for over-engineered. We use log4net instead of the logging or exception handling blocks. We use the native .NET System.Security namespace instead of entlib encryption blocks. Some of the tracing tools are nice, but we don't have anything in production that uses them.
No, we do not use it. In fact I am a big opponent of the Enterprise Library blocks because I have seen too many backward compatability problems with new releases of the blocks.