In my previous post, I mentioned that TechNet Magazine has their past issues available in HTML Help format (.chm) here. If you navigate to that page (with a fully patched Vista or Windows XP box) and open one of the referenced files from directly within IE, you will get something that looks a bit like the following: "The address is not valid".
The reason for this problem is addressed in the following KB article: You cannot open HTML Help files from Internet Explorer after you install security update 896358 or Windows Server 2003 Service Pack 1
After you install security update 896358 or Microsoft Windows Server 2003 Service Pack 1 (SP1), you may experience one or both of the following symptoms after you click a link to an HTML Help .chm file in Internet Explorer:
Security update 896358 and Windows Server 2003 SP1 include changes to the InfoTech protocol that block the ability to view remote content. These changes were introduced to reduce security vulnerabilities in HTML Help. After you install 896358 or Windows Server 2003 SP1, files in the Temporary Internet Files folder are treated as content from the Internet zone. Therefore, files may be blocked when you click Open in the File Download dialog box. Additionally, after you install 896358 or Windows Server 2003 SP1, Attachment Manager may treat a downloaded .chm file as an untrusted file. Therefore, you may not be able to open the file. These effects are expected and intended effects of installing the security update and of installing Windows Server 2003 SP1.
*Note: This problem (and resolution) is also covered in Chris Crowe's Blog.
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thank's a lot, it really helped
Always look that your .chm file is not in some folder thats named or beggining with " # " (without quotes)
Thnaks a lot it really helped me. Very simple yet effective solution :)
Thanks a lot for this, searched for this in swedish but didn't find a solution, method 2 worked for me :)
I literally scoured the entire internet to convert this chm file I chanced upon in an attempt to convert it to a pdf file I could actually open. method 2 worked for me!
Awesome.. thanks man.. helped me at the right time..
Thank you.. Well-written and complete article.
Method 2 solved the problem.
This is simple and very effective. Thanks a lot. Spectacular job done well :)
Hi i am using vista basic. i dont have the option "unblock" button, suggest me a way to open it
Thanks. Worked. Windows XP. Method 2
Thank you very much. Keep go. All the best.
Microsoft not much help; if their 'unblock' does not work or is missing- try the following: This worked for me in XP (not sure about Windows 7) Go to Google, search for UniExtract otherwise known as Universal Extractor ---it was free last time i looked, download, install, set to include context menus. Then right click a .chm file and the context menu choices should appear if installation was successful ---left click on extract to subdirectory, this means that the file will be extracted to a new folder same name as the .chm file. Open folder and your goodie file should be there as an htm, select the initial TOC, table of contents, left click it and it should open in your default browser, use "next" key buttons to scroll thru to your next page, so on and on.
thanks a lot. simple and informative :)