Helm 4.0.x upgrade to 4.1.x

there is some additional information to this topic: http://forums.webhostautomation.com/showthread.php?p=182350#post182350

Upgrade Instructions
4.0.x to 4.1.1 Upgrade

1. The upgrade to Parallels Helm 4.1.1 requires a valid license with Upgrade Protection, or, in terms of Parallels licensing, a license that provides Software Update Service (SUS) which entitles you to version upgrade licenses throughout the life of your SUS. Read more about SUS: http://www.parallels.com/en/support/sus.
   You can validate your license by going to the Parallels Helm member area: http://www.webhostautomation.com/members.
   If you have a license without SUS, go to http://www.parallels.com/store/support/helm/ and reinstate your license. Otherwise, you will not be able to upgrade to Parallels Helm 4.1.1
2. Download the Parallels Helm 4.0 to 4.1.1 Upgrade Tool from the following location: http://helm.download.webhostautomati...pgradeTool.exe.
3. Run the tool and follow its instructions.

=========

First of all make sure that you have .net framework sp2 installed (for all versions) and your Helm is running. If no http://kb.parallels.com/en/5996 you should patch your helm, and re run helm upgrade

Second you should have ready to upgrade licenses for all your servers (SUS)

If you are ready you can run upgrade tool. Usually upgrade procedure takes about 30-40 mins.

NOTE!!! UPGRADE FROM HELM 3.0 TO HELM 4.0 IS ALMOST IMPOSSIBLE, IF YOU WANT TO SAVE YOUR TIME AND MONEY DO NOT PERFORM UPGRADE.