This configuration variable applies only to the ACUCOBOL-GT Thin Client automatic update feature. You use the TC_INSTALLER_TARGET_DIR configuration variable to specify the location where you want the updated thin client to be installed. AcuGT\bin is appended to the location you specify. The default value is:
C:\Program Files (x86)\Micro Focus\extend 10.4.0\
See Thin Client Automatic Update in the AcuConnect User's Guide for detailed information about the thin client automatic update process.