About Guide's System-Link Toolkit, and how your business can benefit from this solution for Infor XA ERP. Offline Loads are going away in any future PTF release (it has already begun in XA R9), and System-Link is the only Infor-supported solution to replace that functionality. System-Link and XML can be hard to learn for those coming from an RPG background. System-Link Toolkit allows programmers and users to interact with System-Link without knowing XML and minimal RPG coding.