The is a proprietary software suite designed to manage D-Link wireless USB adapters and client devices. It acts as an interface between your computer's operating system and the D-Link hardware, offering features that standard Windows networking sometimes lacks. Why It’s a "Hot" Download
If Windows fails to recognize the device, try to download (the .inf file) from D-Link, rather than the entire Connection Manager software bundle. Troubleshooting Common Installation Issues dlink wireless connection manager download hot
(The software is different for each)