What are the various files created by MrDebug?
 What are they?
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 By default all files created by MrDebug started with the name of the
 application being run. The difference is with the extension:

     .PRF - this is the result of a Profile
     .PLI - this is a binary file that contains a list of the lines executed
     .MRD - this is the settings file where MrDebug remember what options you
            have set.
     .MDL - crash log
     .TRC - this is the result of a TRACE/ASSERTion
     .NOT - this is the notes file extension