Versions

12.0.0.1600	2.78%
6.5.0.3300	8.33%
6.5.0.2200	2.78%
6.3.0.8200	5.56%
6.3.0.7900	2.78%
6.3.0.7500	2.78%
6.3.0.7400	2.78%
6.3.0.6300	19.44%
6.3.0.6300	5.56%
6.3.0.6000	2.78%
6.3.0.5500	2.78%
6.3.0.3950	2.78%
6.2.1.3100	2.78%
6.2.1.1500	2.78%
6.2.1.1100	13.89%
6.2.1.100	8.33%
6.2.1.100	8.33%
6.2.0.9602	2.78%

There are 18 versions of btwapi.dll in the wild, the latest version being 12.0.0.1600. The average file size is about 722.62 KB. The file is a digitally signed and issued to Broadcom Corporation by VeriSign. The programs Broadcom 2070 Bluetooth 2.1 + EDR, WIDCOMM Bluetooth Software and ThinkPad Bluetooth with Enhanced Data Rate Software have been observed as installing specific variations of btwapi.dll. The executable is a .NET framework assembly utilizing the CLR.

WBTApi module for Broadcom's OEM distributed Bluetooth Windows software drivers. This module is installed as part of the OEMs driver updates.