Since Esri has removed public links, you have two primary options:
ArcView 3.3 relied on hardware dongles (parallel or USB keys) for licensing. Modern computers rarely have parallel ports. arcview 3.3 download
The official ESRI website no longer provides direct download links for ArcView 3.3, as it has been discontinued and replaced by newer versions of ArcGIS. However, you can still find the software through various online sources: Since Esri has removed public links, you have
ArcView 3.x installers check for Internet Explorer versions and often fail on modern systems. You may need to use a "fake" registry key or install script designed for Windows 7/10 compatibility. Since Esri has removed public links