This variable holds the full path to the ACUCOBOL-GT installation directory. For example, if the runtime is installed in C:\Acucorp\ Acucbl500\AcuGT\bin\wrun32.exe, then you would set this configuration variable as follows:
ACUCOBOL C:\Acucorp\Acucbl500\AcuGT\bin
This variable is used to locate extensions to the runtime.