Use the new MSVS 2022 "common tools" environment variable: VS170COMNTOOLS

to find VsMSBuildCmd.bat

This means you can't use MSVS 2019 with this build.bat any longer.

src/sbbs3/build.bat

 @echo off
 setlocal
-rem *** Requires Microsoft Visual C++ 2019 ***
-call "%VS160COMNTOOLS%\VsMSBuildCmd.bat"
+rem *** Requires Microsoft Visual C++ 2022 ***
+call "%VS170COMNTOOLS%\VsMSBuildCmd.bat"
 msbuild sbbs3.sln /p:Platform="Win32" %*
 if errorlevel 1 echo. & echo !ERROR(s) occurred & exit /b 1
\ No newline at end of file

src/sexpots/build.bat

 @echo off
 setlocal
-rem *** Requires Microsoft Visual C++ 2019 ***
-call "%VS160COMNTOOLS%\VsMSBuildCmd.bat"
+rem *** Requires Microsoft Visual C++ 2022 ***
+call "%VS170COMNTOOLS%\VsMSBuildCmd.bat"
 msbuild sexpots.sln /p:Platform="Win32" %*
 if errorlevel 1 echo. & echo !ERROR(s) occurred & exit /b 1
\ No newline at end of file

src/syncterm/build.bat

 @echo off
 setlocal
-rem *** Requires Microsoft Visual C++ 2019 ***
-call "%VS160COMNTOOLS%\VsMSBuildCmd.bat"
+rem *** Requires Microsoft Visual C++ 2022 ***
+call "%VS170COMNTOOLS%\VsMSBuildCmd.bat"
 msbuild syncterm.sln /p:Platform="Win32" %*
 if errorlevel 1 echo. & echo !ERROR(s) occurred & exit /b 1
\ No newline at end of file

src/vdmodem/build.bat

 @echo off
 setlocal
-rem *** Requires Microsoft Visual C++ 2019 ***
-call "%VS160COMNTOOLS%\VsMSBuildCmd.bat"
+rem *** Requires Microsoft Visual C++ 2022 ***
+call "%VS170COMNTOOLS%\VsMSBuildCmd.bat"
 msbuild vdmodem.sln /p:Platform="Win32" %*
 if errorlevel 1 echo. & echo !ERROR(s) occurred & exit /b 1
\ No newline at end of file