Concepts These topics cover various Genero Web Services concepts. High-level and low-level web services APIs With Genero, we distinguish two type of APIs to implement web services. SOAP features Stateful web services Encryption, base64 and password agent with fglpass tool HTTP compression HTTP compression is a capability that can be built into web servers and web clients to make better use of available bandwidth, and provide greater transmission speeds between both. SOAP multipart style requests in GWS This topic describes multipart support with Genero Web Services Message Transmission Optimization Mechanism (MTOM) The W3C Message Transmission Optimization Mechanism (MTOM) is a method of efficiently sending binary data to and from Web services. swaRef (SOAP with attachments using wsi:swaRef) swaRef must be used when you have to transfer files as attachment and located on disk.