While Upgrading Polyserve 3.4 to 3.6, performing a rolling upgrade, on the first server, after starting the services, while performing the license file upgrade, the following error is thrown across all Other servers in the cluster, and they shutdown ! 

So far we are turning off Data Execution Prevention (DEP), for ClusterPulse.exe. 

UPDATE:  Turns out the root cause we started the 3.6 upgrade with the wrong server, you must start with the highest IP Address, we started with the lowest.

To disable DEP for a program or server wide perform the following:

• Right click on My Computer
• Click on Properties
• Click on the Advanced tab
• Click on the Settings button in the Performance section
• Click on the Data Execution Prevention tab

Screen Captures of the Error Message:

Screen Captures of the solution:

Screen Captures of Turning it off: