During installation of Backup Exec Remote Agent on the remote server the following error is generated if installation is performed by doing RDP (Remote Desktop) session into the remote server
Error 1719. The Windows Installer Service could not be accessed. This can occur if the Windows Installer is not currently installed. Contact your support personnel for assistance.
This error can occur if a newer version of RDP is used.
Note: In case the above step does not resolve the issue on x64 bit machines, try the following step:
Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.
1. Change the registry key for WOW64 to 0 from 1 under the path HKLM\SYSTEM\CurrentControlSet\Services\msiserver.
2. Perform the installation of the Remote Agent.