Every time the Fingerprint SDK library is initialized, it searches for a license file in two locations in the file system. A valid license file must be placed in one of these locations or the library will not work.
The first location is the application's folder. This is the recommended location where to copy the license file when installing a Fingerprint SDK based application.
The second location is recommended only for developers and provides a system and user independent license location: it's the <COMMON APPLICATION DATA>\Griaule folder.
The path <COMMON APPLICATION DATA> is the file system folder containing application data for all users. In Windows Vista, XP, 2000 and 2003 operating systems, the environment variable APPDATA contains this path.
For the English version of the Windows operating system, the table below shows the most likely locations of the <COMMON APPLICATION DATA>\Griaule folder. Other Windows versions or non-English Windows may have slightly different paths. As an utmost option, create the folder if it doesn't exist.
| Windows version | Folder |
|---|---|
| Windows Vista | C:\ProgramData\Griaule\ |
|
Windows XP Windows 2000 Windows 2003 |
C:\Documents and Settings\All Users\Application Data\Griaule\ |
Troubleshooting
If even after placing the license you have purchased, the unregistered version label or the splash screen still shows up, it means the SDK library is finding the trial license in your system. Try to locate the file named GrfingerLicenseAgreementtext.txt using the search of the operating system. Then replace this file with the one you downloaded from Griaule's site.