Release Notes

Welcome to the Embedthis Appweb™ installation release notes. This document provides release-specific information for Appweb. This package contains a pre-built stand-alone (binary) web server and the development libraries and headers needed to embed Appweb in a device or application.


The Appweb commercial license provides a royalty free license with options for commercial maintenance and support. Contact for details.

Appweb includes support for several external packages such as OpenSSL, and PHP. These packages have their own licenses. Make sure you check the relevant package license details to ensure you are complying with their licenses.

System Requirements

Binary releases are supplied for the following operating systems.

The following operating systems may be supported by recompiling Appweb from source.

Appweb is supported directly on these platforms.

Appweb has been ported to other platforms including VxWorks and Windows. On these platforms, the core Appweb software is supported only and not the entire integration with the O/S.

The following CPU architectures are supported: arm, mips, ppc, xscale, x86, x64, sparc.

Run-time System Requirements

To deploy Appweb in an embedded environment, you will need at least the following:

Build and Tool Requirements

If you are building the software from source or using Expansive to render web applications you may require:

Development Environment Hardware Platform Support

If you wish to build Appweb from source code, you will need to use a "C" compiler and associated development tools. Several development environments are supported. You may choose any of the following to compile and build samples and source code.

Helpful Hints

Debug Trace and Logging

Appweb has logging and request trace facilities that can help when debugging configuration issues or developing your application code that uses Appweb. You can vary the level of logging via the --log logfile command line switch for the appweb commands. The log command line switch has the format:

appweb --log logFile:logLevel

Use the -v switch to trace to the standard output at level 2.

appweb -v

The log level can be from 0 to 5, with 5 being the most verbose level.

Similarly you can emit HTTP request trace using the --trace switch.

appweb --trace traceFile:traceLevel

The -v switch will emit request trace to the standard output at level 2 combined with the error log.

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