This is almost always due to missing Vaio Event Service. Manually install VESMgr.exe and VESMgrSub.exe from an old Vaio driver pack. Alternatively, use third-party software like X-Mouse Button Control to manually map buttons to functions (e.g., forward/back in browsers).
You will not find a dedicated “installer” or “.exe” file for this mouse. Many users spend hours searching for a mythical driver package, but the mouse uses standard HID (Human Interface Device) profiles. This means that once your computer’s Bluetooth is working, Windows should detect and connect to the mouse automatically using its own built-in generic drivers.
The driver checks for Sony Vaio BIOS strings. If you’re using a non-Vaio PC, the installer will block you. Workaround: Extract the driver files (using 7-Zip on the .exe). Then manually update the driver via Device Manager, pointing to the .INF file.
Fine-tune the DPI and polling rate through Sony's proprietary control panel overlay. Where to Download the VGP-BMS33 Driver Sony Vaio Bluetooth Laser Mouse Vgp-bms33 Driver
Right-click your main Bluetooth adapter (e.g., Intel Wireless Bluetooth) and select . Go to the Power Management tab.
A: It was designed for Windows 7, Windows Vista, and Windows XP (Service Pack 2 or later). It is not officially supported for Windows 8 or newer systems, though it often works.
If your scroll wheel or specific mapping functions are broken, you will need the original driver package originally designed for Windows 7 or Windows Vista. This is almost always due to missing Vaio Event Service
Press and hold the CONNECT button on the bottom until the status lamp flashes green.
If the direct page is offline, the driver can often be extracted safely from:
The VGP-BMS33 uses a , which is generally more accurate than optical mice but can struggle on very clear or reflective surfaces. The manual notes that the mouse may not work properly on “transparent surfaces or mouse pads with a clear surface” . You will not find a dedicated “installer” or “
Because official Sony links are broken, you must rely on legacy driver repositories and community archives. Here are the safest methods:
The good news is that because it relies completely on the generic, built-in Human Interface Device (HID) Bluetooth profile provided by your operating system.
If you absolutely need the extra buttons, consider using (free, open-source) to assign keystrokes or macros to buttons 4 and 5, and the wheel tilt. This works on any Bluetooth mouse and bypasses the need for the Sony driver entirely.
on modern Windows (7, 8, 10, 11) or macOS. It uses standard HID (Human Interface Device) Bluetooth profiles built into the OS.