I have scripted VLen.bat to determine the length of a string.

The syntax for using VLen.bat is:

call VLen String Length

where String is the string whose length you want to determine, and Length is a call directed numeric environment variable that will contain the length of the string.

NOTE: See A better way to determine the position and length of a sub-string in a string.

VLen.bat contains:

                              @echo off                              if \{%2\}==\{\} @echo Syntax: call VLen String Length&goto :EOF                              set /a %2 = 0                              if exist "%TEMP%\VLen.vbs" goto vl                              @echo dim str>"%TEMP%\VLen.vbs"                              @echo Set objshell = CreateObject("WScript.Shell")>>"%TEMP%\VLen.vbs"                              @echo Set objArgs = WScript.Arguments>>"%TEMP%\VLen.vbs"                              @echo str=objArgs(0)>>"%TEMP%\VLen.vbs"                              @echo wscript.echo Len(str)>>"%TEMP%\VLen.vbs"                              :vl                              for /f "Tokens=*" %%a in ('cscript.exe //nologo "%TEMP%\VLen.vbs" %1') do (                               set /a %2=%%a                              )