This is a Windows system installed file with Windows File Protection (WFP) enabled.
There are 46 versions of msadco.dll in the wild, the latest version being 2.82.4795.0 (srv03_sp2_gdr.101103-0357). The average file size is about 143.92 KB. Some variations of the file have been seen to be installed with the program Microsoft Office 2000 SR-1 Premium from Microsoft Corporation.
Microsoft Data Access Components (MDAC) is a set of software components that are used to provide applications a means to access data from various data storage sources, with a focus on access to Microsoft SQL Server.
(Note, the programs listed below are for all versions of Microsoft Data Access Components.)
(Note, the behaviors below are for all versions of msadco.dll, select a unique version for details.)
Marked as a safe ActiveX control for Internet Explorer (digitally signed with script execution permission)
United States installs about 22.68% of Microsoft Data Access Components.