Help in Developer throws and error

When I try to use help in Developer, it tells me it cannot open “c:\LocalApps\webMethods6-5\Developer\doc\index.pdf”. The path is valid and I can use explorer to go there and look at it. I checked the path pemissions and they seem correct. Any idea why Developer cannot open any of the help files?

For documentation you can get from file system c:\webMethods6\developer\doc folder.


I know, I stated that the files are fine. I would like to access them from within Developer

I seen this behaviour from developer,its not let it open.probably its a bug with in developer tool.
Anyways we have other alternatives access docs from local folder.