Hi mspence
Ummm, am I the only one here that looks at what you have
posted and thinks D2HTOOLS.DLL might not be RoboHelp? I'm seeing
this and thinking "Doc2Help". Have you tried the Doc2Help forums?
The reason I suggest this is because what you are reporting
could be a common issue with that product. But since RoboHelp users
participate here, they would be largely unaware of it.
Cheers... Rick