The batch job service.bat install fails. Removing @echo from the file revealed the problem: jbosssvc.exe reported: Fehler in .EXE. (Error in .exe.)

Does it require some kind of runtime environment, like Visual Studio Runtime Environment?
Is the file compiled as 32 or 64 bit binary?
I could not find any hints, and the README-service.txt does not mention anything.

The Installation And Getting Started Guide does not even mention service.bat or jbosssvc.exe. Instead it refers to JavaService for starting JBoss as Windows service. This is very confusing and cost me several hours today...