Error 1721. There is a problem with this windows installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor.
For Update 39159, you will need to change the folder locations to be \39159\v6.0.809.0.
Note:These steps assume that you've installed the Notification Server to the default location.
Notification Server 6.0.6074 SP3 R7 or R8