Some of the executable (*.exe files) which had a prefix Topobase / TB in Map 3D 2012 or earlier release have been renamed in AutoCAD Map 3D 2013, e.g. TBBatch.exe is renamed to IMBatch.exe in Map 3D 2013.
Here is the Map 3D wikihelp link that lists the renamed executable files in Map 3D 2013 :

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