I am new to the Logging application block (4.1). Has anyone written an application that uses the Logging application block from multiple threads? I am asking because the Logger
I am not too sure why you are concerned that this might happen. As long as you provide a category for your logging messages those should be written to the appropriate logging file configured for that category. This operation is thread safe.
Or are you talking about writing the logging messages of the same category to different files by thread? E.g. thread 1 -> mylog-1.log; thread 2 -> mylog-2.log
The Logging Application Block is thread safe, meaning you can call its public methods from multiple threads without doing any synchronization of your own. The library does its own synchronization.