You can do this one of two ways:
1. Start | Run ... drwtsn32.exe
2. Change the Log File Path and Crash Dump to reflect the new paths (note
... the paths must exist prior to doing this .... not the files .... just
the paths .... so create the folders first)
3. Click OK
All this does is add to values to the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DrWatson
It adds:
LogFilePath REG_SZ pathname
CrashDumpFile REG_SZ pathname\filename.dmp (the file is usually
called user.dmp)
These files are leftover from previous applications crashes ... there are
many system cleaners that auto clean these (
www.ccleaner.com), or you can
periodically manually delete them yourself.