Hello again
In a perfect world we would see that there would be no issues with linking. Unfortunately, we don't live in a perfect world. 
In Captivate 3, you could create a link to an asset such as a Microsoft Word document, Adobe PDF document, Microsoft Excel spreadsheet or whatever. Once you did this, you simply ensured that the asset was in the same folder as the Captivate output linking to it. Most of the time things just worked. But sometimes we saw that instead of opening the asset, the browser opened and couldn't find it. The odd part of all this was that the address listed in the browser address bar was actually correct. And if you just clicked there and pressed Enter, voilà! The asset popped open.
In Captivate 3 you had a companion application called MenuBuilder. This application was intended to be used to link to assorted files. It was like a Captivate that was very limited in scope. It created what I refer to as "one slide wonders". I discovered this application could help when you needed to create a link that would work.
Do you have Captivate 3 handy? If so, you may be able to use the companion MenuBuilder application to overcome some limitations.
If you don't happen to have it handy, shoot me an E-Mail message at rstone75 (at) kc (dot) rr (dot) com and tell me the exact file names you need to link to. I'll be happy to create some small SWF files and send them back that will help with the linking.
Hopefully this was helpful... Rick 