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Micriµm offers a complete suite of RTOS components including: µC/FS (an Embedded File System), µC/TCP-IP (a TCP/IP stack), µC/GUI (a Graphical User Interface), µC/USB (a USB device and host stack), and more. Most of these components are designed to work standalone. Except for µC/TCP-IP, a real-time kernel is not required to use the components in an application. In fact, users can pick and choose only the components required for the application. Contact Micriµm (www.micrium.com) for additional details and pricing.