Hello,
From trial and errors, I ended up deleting the following registry keys:
[HKEY_CLASSES_ROOT\Applications\VMwareHostOpen.exe] (the entire key...)
[HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\MuiCache]
"C:\\Program Files\\VMware\\VMware Tools\\VMwareHostOpen.exe.ApplicationCompany"="VMware, Inc."
"C:\\Program Files\\VMware\\VMware Tools\\VMwareHostOpen.exe.FriendlyAppName"="Default Host Application"
And the values are not coming back after a reboot...
Also, do not forget to delete the already associated file types the user may have... just search your registry or un-assign them from the control panel.
Xavier