If I run the following btm file in a TCC window, the window closes after the error message is displayed. You don't need the G file. The point is it doesn't exist.
TCC 29.00.17 x64 Windows 10 [Version 10.0.19045.2846]
Code:
*on errormsg cancel
*setlocal
*unalias *
echo on
set G=C:\TT\RATINGSCENTRAL\CODE\COMMON\SERVER\SERVEROUTCOMEDATABASE.PAS
iff %@fileage[%G] == 1 then
echo Oops
endiffTCC 29.00.17 x64 Windows 10 [Version 10.0.19045.2846]