The Component Library for Cross Platform (CLX), is a cross-platform visual component-based framework for developing on http://en.wikipedia.org/wiki/Microsoft_Windows Microsoft Windows and http://en.wikipedia.org/wiki/Linux Linux applications. It is developed by Borland for use in its Kylix, Delphi, and C++ Builder software development environment. However, due to lacklustre performance on Windows, subtle differences from VCL and bugs it didn't became the expected successor of VCL. Commercial failure of Kylix stopped further development of CLX.