Mouse junkies can right-click on vsthostregclean.exe, select “Create Link” (or whatever that’s called
in your local version of Windows) to create a link, then modify the link’s properties to include the
/slave parameter on the invoked program’s command line, save the new properties, and then doubleclick
on the link (and remove the link again, since this is a one-time operation).
If you’re also using the Open Source variant of VSTHost, vsthostregclean has the unfortunate side
effect of removing all the settings for this one, too; for such an environment, you can pass the
additional parameter /keep to vsthostregclean so that it doesn’t remove the Settings and Load subkeys
from the registry after having copied them.