The benefits of using KEPServerEX V4.0 include:
You can download KepServerEX V4.0 from the Kepware website: Kepserverex V4.0 Free Download
If you need KEPServerEX for a legitimate project but do not have a budget, The benefits of using KEPServerEX V4
Searching for a "free download" of KEPServerEX V4.0 usually leads to outdated or unofficial sources, as version 4 is a legacy product. Modern industrial environments typically use KEPServerEX Version 6 or the recently released Kepware Server 7 Accessing KEPServerEX V4.0 Official Downloads Kepserverex V4.0 Free Download
You can download KEPServerEX V4.0 for free from the following link: