* save this file as a .bat or .cmd file
* edit the path to point to the appropriate place
-- %appdata%\Opera\Opera\profile\sessions\autosave.win
* execute and enjoy
tabcount.cmd
@echo off
for /f "delims== tokens=1,2 usebackq" %%I in (`type "%appdata%\Opera\Opera\profile\sessions\autosave.win"`) do (if "%%I" == "window count" echo %%J)
