Проблема решена, на Т-13 нет перменной %TEMP%
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Код:

@Echo off
pushd %~dp0
Set TEMP=%windir%\Temp
Call :dvars$
:Install2One
Call :InstallWeb
popd
Goto :EOF
:InstallWeb
Start "" /wait drweb-600-win-x86.exe /S /V"INSTALLDIR=\"%InstPathD%\\" TRANSFORMS=\"%~dp0drweb60.mst\" /qb"
Xcopy drweb32.key "%InstPathD%" /E /Q /H /R /Y
Goto :EOF
....
....
:dvars$
Set InstPathD=%ProgramFiles%\DrWeb