Today I was installing a VMware vCSA 6.0 update 1, and making a vCenter Update Manager server (Windows) and installed Google Chrome to use with the vSphere Web Client.
After the installation i used Chrome to login to the vSphere Web Client and on the login screen i downloaded the Client Integration Plug-In, and installed it. Afterwards could I see that it did not work, as it should.
Then I did some investigation and found that the version downloaded from the vSphere Web Client, is an older version, then the one that's in the vCSA ISO file.
Version from vSphere Web Client: 10.0.0.2799
Version from ISO: 10.0.0.3279
The one from the ISO files works, so use that one or download it from this link: http://vsphereclient.vmware.com/vsphereclient/2/9/9/4/0/4/1/VMware-ClientIntegrationPlugin-6.0.0.exe