VMware vSphere Error – Initializer for VirtualInfrastructure.Utils.HttpWebRequestProxy’ threw an exception

Hey TechHeads!  Here’s an important vSphere issue that may potentially impact the management of your production or lab vSphere environment.  The ‘issue’ is caused by a recent Microsoft .NET patch update which can cause your pre-Update 1 vSphere Client to give the error message: “ Error parsing the server "<servername>" "clients.xml" file.  The type initializer for VirtualInfrastructure.Utils.HttpWebRequestProxy’ threw an exception. “

VMware have released a Knowledge Base article which describes the error in a little more detail and provides the resolution of….  Update your vSphere Client.  So to head this error off you may want to consider upgrading your vSphere Client, if your haven’t already done so.

 The type initializer for VirtualInfrastructure.Utils.HttpWebRequestProxy' threw an exception

About Simon Seagrave 706 Articles
Simon is a UK based Virtualization, Cloud & IT Technology Evangelist working as a Senior Technology Consultant and vSpecialist for EMC. He loves working in the ever changing IT industry & spends most of his time working with Virtualization, Cloud & other Enterprise IT based technologies, in particular VMware, EMC and HP products. As well as on this site, you can find him on Twitter and Google+


  1. Last night i installed the 60-days trial of vSphere and today got that error, lucky me and after seeing the error i read about here.. as always your blog get me out of trouble!!

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