X Lite is a nostalgic, lightweight tool that can be forced to run on Windows 11 with the tweaks described above. It remains useful for a very niche audience: IT administrators testing new SIP trunk setups on a lab machine.
Windows 11 Bluetooth stack frequently disconnects the "Hands-Free Telephony" profile required by X Lite. A simple USB headset (Jabra, Logitech) works flawlessly. Conclusion: Should you use X Lite on Windows 11? The Short Answer: No, not for daily business use.
Open Registry Editor (Regedit). Navigate to HKEY_CURRENT_USER\Software\CounterPath\X-Lite\Settings . Create a new DWORD (32-bit) named DisableGPUAcceleration and set value to 1 . This stops X Lite from fighting with Windows 11's WDDM 3.0 drivers.
But with the release of Windows 11, a major question has emerged: