Versions

12.0.0.1800	2.27%
6.5.1.5000	2.27%
6.5.1.4100	2.27%
6.5.1.2700	2.27%
6.5.1.2300	2.27%
6.5.0.3300	2.27%
6.5.0.2300	2.27%
6.5.0.2000	2.27%
6.4.0.2300	2.27%
6.4.0.1500	2.27%
6.3.0.8200	2.27%
6.3.0.7600	2.27%
6.3.0.7500	2.27%
6.3.0.7400	2.27%
6.3.0.7000	4.55%
6.3.0.6300	6.82%
6.3.0.6300	2.27%
6.3.0.5600	4.55%
6.3.0.5500	2.27%
6.3.0.5100	2.27%
6.2.1.2400	2.27%
6.2.1.1100	4.55%
6.2.1.1100	2.27%
6.2.1.500	2.27%
6.2.1.100	6.82%
6.2.1.100	2.27%
6.2.0.9600	2.27%
6.2.0.9600	4.55%
6.2.0.9400	2.27%
6.0.1.6300	2.27%
6.0.1.6204	2.27%
6.0.1.4900	2.27%
5.6.0.7900	2.27%
5.5.0.3208	2.27%
5.1.0.3400	2.27%
5.1.0.3000	2.27%

There are 36 versions of btosif_olx.dll in the wild, the latest version being 12.0.0.1800. The average file size is about 324.68 KB. The file is a digitally signed and issued to Broadcom Corporation by VeriSign. The programs WIDCOMM Bluetooth Software, ThinkPad Bluetooth with Enhanced Data Rate Software and Broadcom 2070 Bluetooth 3.0 have been observed as installing specific variations of btosif_olx.dll. The executable is a .NET framework assembly utilizing the CLR.

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