How to open the. chm File

The most common solution to the. chm File problem can be solved using the following method: 1. Right-click chm to see if there is any unlock option .. It should be locked because the path name of the file contains the characters such. Symptom
After installing security update 896358 or 890175, you may encounter one or more of the following symptoms: www.2cto.com • some types of Web-based programs may not work properly. For example, directories in HTML Help may no longer work. • Some HTML Help functions may not work when the. chm file is opened remotely. For example, the related topic function may not work. After CHM is opened, all contents are invisible... just like our common 404 error! Note: This article contains additional information for the following Microsoft Knowledge Base Article: 896358 ( http://support.microsoft.com/kb/896358/ ) MS05-026: vulnerabilities in HTML Help may allow remote code execution 890175 ( http://support.microsoft.com/kb/890175/ ) MS05-001: vulnerabilities in HTML Help may allow code to execute and install these security updates, which are expected to have these symptoms. This section provides some examples for administrators who must re-enable HTML Help ActiveX controls for key business programs. These alternatives may compromise computers and make them more vulnerable to threats restrained by the aforementioned security updates. The safest way is not to use the registry substitution method. If you must use an alternative method, set the registry value as strictly as possible. Solution: paste the following text into a text editor (such as NotePad. Then, use the. reg file extension to save the file and import it to the Registry. (back up the Registry first ). CODE: [Copy to clipboard] REGEDIT4 [HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ HTMLHelp] [HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ HTMLHelp \ 1. x \ HHRestrictions] "UrlAllowList" = "\\\\ productmanuals \ helpfiles; http://www.wingtiptoys.com/help/ "In addition, similar descriptions are provided on Microsoft's website. The website is http://support.microsoft.com/kb/902225/zh-cn The solution is to reference the solution provided by www.2cto.com for end users. Warning: If you are prompted to open or save from the website. the chm file is operated only when the file is required and the website that provides the file is trusted. In the "File Download" dialog box, click "save" and select the location where you want to save the. chm File. Then, use one of the following methods:
Method 1 1. Double-click the. chm File. 2. In the "open file security warning" dialog box, click to clear the "always ask before opening this file" check box. 3. Click Open ". Method 2 1. Right-click the CHM File and click "properties ". 2. Click Cancel ". 3. Double-click the. chm File to open the file. Author guanning0109