TCL console path initialization

I am trying to run commands in the Quartus 16.0 Tcl console window. Commands like quartus_map result in that the command name is invalid.

I am running on Windows and have edited the PATH variable to include C:\altera\16.0\quartus\bin64 which is where the executables are located on my machine. I am able to run the commands from the nios shell but from the Quartus GUI tcl console I get the above error. So I am unsure how to setup whatever initialization is done when Quartus is launched so that it can find these commands or pickup the Windows PATH environment variable

Thanks,
Dave