I'm having a difficult time getting plugins to load in the vSphere client on my workstation. I've cleaned out all installations of VMware software, and then reinstalled vSphere client to be sure that I am working in a clean environment. Connections at this point work fine, however if I attempt to load the plugin from SamplePlugin_40.zip none of it's extenions appear in the GUI, and it is not listed in the plugin manager.

Also, we've ported our VIClient plugin from 3.5 to vSphere, but when I load that on my workstation the tabs for inventory items do not appear. Instead I get a white panel saying "Required vSphere Client support files are missing. Restart vSphere Client to download and install missing files.". This works fine on other hosts, but fails on mine so I'm trying to isolate the location of the failure, such as a PATH conflict. Checking the vSphere Client output with Visual Studio doesn't indicate much though, it doesn't even look like the plugin is being loaded.

I am running vSphere Client 4.0.0 Build 162856. Has anyone else experienced either of these issues or can provide some insight. Thanks.