Article ID: 2021383 - View products that this article applies to.
When attempting to open a Compiled HTML Help (.CHM) file on Windows Vista or Windows 7, the file may open but display one of the following messages instead of the expected content:
This will occur if the .CHM file has been flagged as downloaded from an untrusted source, such as the Internet.
To resolve this issue, carry out the following steps:
This behavior is a function of the Attachment Manager, which applies a Zone Identifier to files downloaded from any source that is considered untrusted or at risk, such as the Internet Zone.
(http://go.microsoft.com/fwlink/?LinkId=151500)for other considerations.
Article ID: 2021383 - Last Review: March 23, 2010 - Revision: 2.0