Bindows is a JavaScript

JavaScript

JavaScript is a prototype-based scripting language that is dynamic, weakly typed and has first-class functions. It is a multi-paradigm language, supporting object-oriented, imperative, and functional programming styles....

 based Software Development Kit (SDK) for writing Rich Internet Applications.
Bindows applications are defined by XML

XML

Extensible Markup Language is a set of rules for encoding documents in machine-readable form. It is defined in the XML 1.0 Specification produced by the W3C, and several other related specifications, all gratis open standards....

 documents called ADF's (Application Description File).
The framework implementation is entirely client-side, but a JSF

JavaServer Faces

JavaServer Faces is a Java-based Web application framework intended to simplify development integration of web-based user interfaces....

 server side implementation is marketed by the same vendor.

Another meaning of Bindows

In Thailand, there is an operation system called "Bindows XD" which is not to be confused with this software. It is a fake Windows XP released early 2004 still in use as of 2009.

Features

Some highlight features of the Bindows SDK are:

• Native XML
  XML
  Extensible Markup Language is a set of rules for encoding documents in machine-readable form. It is defined in the XML 1.0 Specification produced by the W3C, and several other related specifications, all gratis open standards....
  
  , SOAP
  SOAP
  SOAP, originally defined as Simple Object Access Protocol, is a protocol specification for exchanging structured information in the implementation of Web Services in computer networks...
  
   and XML-RPC
  XML-RPC
  XML-RPC is a remote procedure call protocol which uses XML to encode its calls and HTTP as a transport mechanism. "XML-RPC" also refers generically to the use of XML for remote procedure call, independently of the specific protocol...
  
   support
• Accessibility (Section 508) Support
• Complete windowing system
• Vector Graphics support

Relevance

It's been claimed that Bindows is probably the leading object-oriented platform for developing Ajax applications. While this might be true for implementations in large enterprises(91 of the Fortune-100 Companies, according to the website), many open-source AJAX frameworks are more widely spread.