Once you locate the file (typically named EasyDent_V4_Setup.exe or a compressed .zip containing dependencies):
The most secure way to obtain the software is through the Vatech America FAQ & Support portal. They provide direct download links for workstations and legacy systems. easydent v4 download
Measure bone height and implant angles accurately down to the millimeter. Once you locate the file (typically named EasyDent_V4_Setup