The intent here is clear: users are looking for a "BD Net VPN"—a service optimized for the Bangladeshi internet infrastructure—that is downloadable for the Windows operating system. Understanding this intent is the first step toward finding the right tool.
It may work with some regional libraries, but not reliably. Dedicated streaming VPNs are better for this purpose.
Tap the "Update" button in the app menu to ensure you have the latest server configurations.