version 1.1 of the AutoCAD(R) Runtime
Extension development environment. With this ARX SDK , you can continue
to create the next generation of your AutoCAD applications that are
faster, more powerful, and more seamlessly integrated than ever before.
This update is based on AutoCAD Release 13 c4a and contains ARX
libraries, include files, samples and help files. Applications built
with this update require AutoCAD Release 13 c4 or c4a to run-they will
not load on any earlier version of AutoCAD Release 13. For the latest
technical information, please launch the ARX SDK Readme that is part of
the ARX SDK on-line documentation.