Versions

12.0.0.1800	3.13%
6.5.1.5000	3.13%
6.5.1.4100	3.13%
6.5.1.2700	3.13%
6.5.1.2300	3.13%
6.5.0.3300	3.13%
6.5.0.2300	3.13%
6.5.0.2000	3.13%
6.4.0.2300	3.13%
6.4.0.1500	3.13%
6.3.0.7600	3.13%
6.3.0.7500	3.13%
6.3.0.7000	6.25%
6.3.0.5600	6.25%
6.3.0.5100	3.13%
6.2.1.2400	3.13%
6.2.1.1100	3.13%
6.2.1.500	3.13%
6.2.1.100	3.13%
6.2.0.9600	3.13%
6.2.0.9600	6.25%
6.2.0.9400	3.13%
6.0.1.6300	3.13%
6.0.1.6204	3.13%
6.0.1.4900	3.13%
5.6.0.7900	3.13%
5.5.0.3208	3.13%
5.1.0.3400	3.13%
5.1.0.3000	3.13%

btosif_notes.dll has 29 known versions, the most recent one is 12.0.0.1800. The average file size is about 418.92 KB. It is an authenticode code-signed executable issued to Broadcom Corporation by the certification authority VeriSign. The programs WIDCOMM Bluetooth Software, Lenovo Bluetooth with Enhanced Data Rate Software and Software WIDCOMM Bluetooth have been observed as installing specific variations of btosif_notes.dll.