KB89053 is the MS artical the tells you how to open CHM files from a remote location.
Several folks have inform me that MaxAllowedZone=1 no longer lets them open .CHM files located on a local server (ie. when it opens the right side can’t display content). Level 3 works but the KB article says to use level 1. Level 1 worked prior to IE7.
MaxAllowedZone (dword value) =1
IE security settings will effect applications that display content in the IE Browser (HH Viewer uses an embedded version of IE). Under IE7 you now need to open Internet Options > Local Intranet > Sites and enable the inclusion of intranet and network paths. Apparently no longer enabled by default anymore. Once you do this MaxAllowedZone=1 works as documented.
- Open Internet options dialog (IE7 > Tools > Options, or via the Control Panel)
- Click Local intranet, then click Sites button
- Uncheck the first checkbox, and check the other 3 checkboxes.