Add functionality to your ArcView 3.x projects through Avenue. Find free Avenue scripts here.
From ESRI, scripts, code and extensions available for free downloading.
Columbia Mapping Avenue Scripts
Keith Massie’s site for select Avenue scripts for downloading.
Columbia Mapping Dialog Designer
Keith Massie’s site for select ArcView Dialogs for downloading.
GISCafe Avenue Scripts
Access to free avenue scripts posted to GIScafe’s site. New resources are posted on a daily basis.
Page of downloadable scripts from MyGIS.
GIS Tools Directory
Free GIS Tools directory from GISuser.com – this directory provides downloads and pointers to hundreds of extensions, tools and scripts.
Descriptions of free scripts available from Quantdec.
Download scripts and extensions from this site. You can also download some of their sample scripts and demos from this site.
Stuff for ArcView Users
Scripts, Extensions and other tools for developing ArcView applications.