TCMD/TCC 12 running on 64-bit Windows 7; My user account is a domain administrator and a member of machine's Administrator's group. I've just encountered this behavior today (30 Aug). TCMD, which started two TCC tabs yesterday and has been running with them open since, failed to open another today, displaying instead a dialog saying "the requested operation requires elevation". I also now cannot run TCC directly without granting elevated privilege through the UAC dialog. I'm not sure what criteria Win7 uses to determine that running a program requires elevated privileges and I certainly have no idea what has changed in the past 24 hours. I can work around the problem saying Yes to the UAC dialog or by running as administrator from TCC's context menu, but I'd prefer not to do all of my command line operations at that level. Any ideas?