FaxBack Connector for Microsoft Fax - Configuration Guide For Windows Server 2008 R2 User Manual
Page 7

Microsoft Fax Connector Configuration Guide for Windows Server 2008 R2 — Page 7
After it is finished installing, you will be asked to reboot.
Once the reboot has completed you are ready to go through the installation for the VoIP Plug-In for Microsoft-Fax.
Run the install MSI and click next to begin the install.