This specifies a directory to which Tango writes all variables when it is shutdown, and re-reads those variables from when Tango is started.
Note:
Variables continue to expire in the usual fashion; if you
restart Tango after the specified user timeout period has elapsed,
all the variables immediately expire upon being reloaded.
The default value of this variable is {defaultpath}variables.{name of Tango Server}; for example, on Windows when running Tango, the value of the variable is C:\PVSW\Tango2000\Configuration\
variables.Tango_2000_Personal_Server.