For Source Code, contact or visit the Envision Subversion repository at Use 'guest" as the user name, no password is required.

Additionally, an Envision Software Development Kit (SDK) is available for those interested in developing their own Envision plug-ins. It provides some "skeleton" files for facilitating putting together a plug-in module.   An installer that will put the SDK files on our local machine can be downloaded at this link.  Alternatively, if you download the entire Envision source tree, it is included in the src/EnvSDK directory.