The most reliable way to get the BCM2045 working on Windows XP is through the WIDCOMM Bluetooth software.

When used with the correct driver package, it supports a wide range of profiles including A2DP (high-quality audio), HID (mice/keyboards), and FTP .

Trusted repositories like DriverGuide or the Internet Archive often host the original WIDCOMM setup files for XP.

Windows XP SP2 includes its own Bluetooth stack. To use it instead of Broadcom:

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