Total Visual Agent 2016 does not require Access to be installed on your PC. Total Visual Agent 2013 and 2007 required a 32-bit version of Access 2007 or later to be installed in order to support ACCDB files.
If you want to execute certain tasks, you must have the appropriate version of MS Access installed:
Running/executing a Macro
Compacting an ADP
Total Visual Agent 2003 and earlier do not require Microsoft Access. See the version information for details.