If you are in the process of upgrading to Windows 7 (64-bit) and are still using Civil 3D 2009 you might notice files take longer to save. In this example we are saving a 65mb file (very large file). To save the file to the C: drive with Civil 3D 2009 on Windows XP it takes 45 seconds. Whereas, with Civil 3D 2009 loaded on Windows 7 the same file takes 1.5 minutes to save. So essentially, the file takes twice as long to save. I have no idea why it takes longer to save, it just does. Also note, C3D 2009 is not officially supported on Win7.
However, there is a light at the end of the tunnel. Civil 3D 2011 (64-bit), with ISAVEPERCENT set to 50% – after the 1st two saves – only takes 15 seconds to save the file. So essentially it takes 1/3 of the time it took C3D 2009 to save on XP; an increase in proficiency.
After the jump see some more save-time results. Including over the LAN and WAN (w\ Riverbeds).