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I am making a batch script which mounts an ISO file and installs an app (VS 2012) from the mounted location like this:

%DRIVE_LETTER%:\vs_ultimate.exe /passive /norestart

But the problem is to get the drive letter in which the ISO is mounted. Does anyone know a way to get the drive letter?

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up vote 7 down vote accepted

Try this:

for /f "tokens=3 delims=\:" %%d in ('reg query hklm\system\mounteddevices ^| findstr /c:"5C003F00" ^| findstr /v "{.*}"') do (  
    if exist %%d:\vs_ultimate.exe %%d:\vs_ultimate.exe /passive /norestart
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