You could have downloaded LicensePlateDetector 9.1 from our software library for free. The program lies within System Utilities, more precisely Automation. The most popular version of the LicensePlateDetector is 9.1. The actual developer of the program is IntelliVision. LicensePlateDetector.exe is the frequent file name to indicate this program's installer.
From the developer:
License Plate Detector detects, recognizes and records vehicle license plate information. It captures the information on the license plates detected in the scene. It searches and compares this information against a stored database of license plates to find a match. License Plate Detector is used for vehicular access control in parking lots and garages and for calculating related metrics such as duration of stay, and frequency of visits.
You may want to check out more software, such as DirectoryMirror, ClickSwitch or Omniquad Desktop Booster, which might be related to LicensePlateDetector.