@echo off
Call :YesNoBox "Do you want to disconnect?"
if "%YesNo%"=="6" (
FOR /f %%G IN ('D:\Scripts\FindActiveSessions.bat') DO tsdiscon %%G
)

exit /b
:YesNoBox
REM returns 6 = Yes, 7 = No. Type=4 = Yes/No
set YesNo=
set MsgType=4
set heading=%~2
set message=%~1
echo wscript.echo msgbox(WScript.Arguments(0),%MsgType%,WScript.Arguments(1)) >"%temp%\input.vbs"
for /f "tokens=* delims=" %%a in ('cscript //nologo "%temp%\input.vbs" "%message%" "%heading%"') do set YesNo=%%a
exit /b

:MessageBox
set heading=%~2
set message=%~1
echo msgbox WScript.Arguments(0),0,WScript.Arguments(1) >"%temp%\input.vbs"
cscript //nologo "%temp%\input.vbs" "%message%" "%heading%"
exit /b