for me 5.5 wasn't an option, J# didn't do the trick and I couldn't find the mentioned KB
What I did find was MS16-065 ( https://support.microsoft.com/nl-nl/kb/3155464 )
To be more precise the registry settings from ManualOptOutSchSendAuxRecord20.reg did the trick for me
Thank you for the information.
What is the version of the vSphere client that solved trhe issue?
I realize this is a bit old but for those whom are still struggling with this, below is the short answer (English).
Do this: Workaround
To temporarily disable the secure mode described in this article, click the appropriate link to download a .reg file, and then double-click the downloaded .reg file to make the registry changes.
For applications targeting the Microsoft .NET Framework 3.5: