Versions

12.0.0.6300	1.92%
12.0.0.6200	1.92%
12.0.0.6000	3.85%
12.0.0.5100	1.92%
12.0.0.3100	1.92%
12.0.0.1800	1.92%
6.5.1.5000	1.92%
6.5.1.4100	1.92%
6.5.1.2700	1.92%
6.5.1.2300	1.92%
6.5.0.3300	1.92%
6.5.0.2300	1.92%
6.5.0.2000	1.92%
6.4.0.2300	1.92%
6.4.0.1500	1.92%
6.3.0.8200	3.85%
6.3.0.7600	1.92%
6.3.0.7500	1.92%
6.3.0.7400	1.92%
6.3.0.7000	3.85%
6.3.0.6300	5.77%
6.3.0.6300	1.92%
6.3.0.5600	3.85%
6.3.0.5500	1.92%
6.3.0.5100	1.92%
6.2.1.2400	1.92%
6.2.1.1100	3.85%
6.2.1.1100	3.85%
6.2.1.500	1.92%
6.2.1.100	5.77%
6.2.1.100	1.92%
6.2.0.9600	1.92%
6.2.0.9600	3.85%
6.2.0.9400	1.92%
6.0.1.6300	1.92%
6.0.1.6204	1.92%
6.0.1.4900	1.92%
5.6.0.7900	1.92%
5.5.0.3208	1.92%
5.1.0.3400	1.92%
5.1.0.3000	1.92%

btosif_ol.dll has 41 known versions, the most recent one is 12.0.0.6300. The average file size is about 491.52 KB. It is an authenticode code-signed executable issued to Broadcom Corporation by the certification authority VeriSign. The programs Broadcom Bluetooth Software, Lenovo Bluetooth with Enhanced Data Rate Software and Broadcom 2070 Bluetooth 2.1 + EDR have been observed as installing specific variations of btosif_ol.dll. This is a .NET Common Language Runtime (CLR) assembly.

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