Thanks. The help browser uses AcWebBrowser.exe to browse the internet. My company considers this to be a security risk since this is an unauthorized web browser. They don't like applications using the internet in general but are very picky about web browsers and databases since they have so many potential security risks.
I agree that the online help is a good resource for our users and am recommending that they create a favorite in their web browser to the AutoCAD help page. So I don't want to block their access completely by blocking it at our proxy server (plus this wouldn't really alleviate the security risk).
Thanks for the tip about modifying the user's permissions. However, the key that controls the online help also controls other things besides the help so I'm not sure that this is a viable solution. Below is the key that I would have to modify.
HKCU\Software\Autodesk\AutoCAD\R20.1\ACAD-F001:409\Profiles\<<profilename>>\Variables
My other option is to disable the AcWebBrowser.exe (which is probably a better solution to avoid security concerns) but I'm not sure what features use this process. I know that the Start Tab, Help Browser, and Geograpic Location use the AcWebBrowser. We already have the Start Tab turned off and are okay with not having the Help Browser (since users can access that using their web browser) or the Geographic Location feature. But I'm not sure if anything else uses the AcWebBrowser as well.