how to handle this error?

[Ramaa Davanagere]

This error occurs once in a while and I wonder if there is a way to handle it. I turned on log4net internal debugging and this is what I see.   log4net:ERROR [RollingFileAppender] Unable to acquire lock on file C:\Program Files\Mobius\logfiles\log4net\vdrconBOLog.log. The process cannot access the file "C:\Program Files\Mobius\logfiles\log4net\vdrconBOLog.log" because it is being used by another process.   Is there a way to unlock the file so that log4net can continue with its job? What are the other ways to resolve this error?   Thanks   -Ramaa