NewtDevEnv 3.4 release (1999), plugins, documentation and examples:
https://communicrossings.com/html/newton/newtdev.htm
https://communicrossings.com/html/newton/regnewt.htm [zip pw: narfpoit]

plugins:
NewtPack saves Newt apps as Newton packages
MetaDot provides menus of functions/methods and parameters, protos and default slots and methods
others provide constants, prototypes, error messages
https://communicrossings.com/html/newton/newtdev/plugins.htm

source contains NTK project, layout and resource fork files
-- thanks to Sylvain Pilet. http://message-pad.net

released under MIT open source license