Install Issue and Remedy for clients receiving 'Error opening data source'

When trying to install or update Comply, some customers have been getting a message "Error opening data source". This can be caused by a missing or corrupted installation of SQL Server Native Client on the user's machine. Prior to Comply v18.2, the Comply installation would use the operating system's version of OLE DB to connect to the database. However, Microsoft has deprecated these database drivers, which don't support later versions of TLS. With most customers disabling TLS 1.0, starting with v18.2 of Comply, the installation was updated to rely on a different database driver. Since these database drivers are no longer part of the operating system, Comply installs will install the SQL Server Native Client files when they are not present on a user's machine. However, there have been a few cases where the user's system says that SQL Server Native Client exists on the machine but the files are not present or not registered properly. Because the Comply installs rely on a properly configured SQL Server Native Client, customers will need to uninstall and reinstall that before re-running the Comply install. The install file (sqlncli.msi) is very small (only 3MB) and can be found on the RATA support site, as well as on the Microsoft site here: https://www.microsoft.com/en-us/download/details.aspx?id=50402