The iScript Standard Template Library (STL) is a library of functions created to increase the speed and effectiveness of iScript development. The library is available to any Enterprise Software customer with a current iScript license. The STL is updated for new releases of Perceptive Content. If you use the STL, you should upgrade the library when upgrading to a new version of Perceptive Content. You can download the iScript STL from the Downloads tab through the Customer Portal.