For those who did not have any luck with the deleting of the dll(ssleay32.dll) described in this blog, there’s another possibility to enable the VMware Converter plugin without crashing your VirtualCenter client:

Go to the following registry key:

[HKEY_CURRENT_USER\Software\VMware\VMware Infrastructure Client\Preferences\UI]

And set the following key to “Enabled”

“C:\\Program Files\\VMware\\Infrastructure\\Virtual Infrastructure Client\\Plugins\\Converter Enterprise\\plugin.dll”