I'm attempting to install AutoCAD 2012 Maps with a network license, installing from a network drive. The setup is run as administrator and this is the same error (different temp name though) that I've encountered during installation:
Detailed installation can be provided upon request (~35 MB).
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Besides installing as local admin, make sure that you also have disabled both UAC and your anti-virus. Symantec and Trend Micro are big culprits for these issues.