Error opening Help in Windows-based programs: "Feature not included" or "Help not supported"

Manually unblock .hlp files that are stored on an intranet on a single computer
Important
Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.

To unblock .hlp files after you install WinHelp32.exe, follow these steps:

1. 
   Log on by using an administrator account.
   
2. 
   Press the Windows logo key + R, type regedit, and then click OK.
   If you are prompted for an administratorpassword or for confirmation, type the password, or click Continue.
   
3. 
   On 32-bit editions of Windows, locate and then select the following registry subkey:
   

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft
On 64-bit editions of Windows, locate and then select the following registry subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft

4. 
   On the Edit menu, point to New, and then click Key.
   
5. 
   Type WinHelp, and then press Enter.
   
6. 
   Click the WinHelp key.
   
7. 
   On the Edit menu, point to New, and then click DWORD (32-bit) Value.
   
8. 
   Type AllowIntranetAccess, and then press Enter.
   
9. 
   On the Edit menu, click Modify.
   
10. 
    In the Value data box, type 1, click Hexadecimal in the Base area, and then click OK.
    
11. 
    Exit Registry Editor.
    

Registry entries and group policies for network administrators
Warning This workaround may make a computer or a network more vulnerable to attack by malicious users or by malicious software such as viruses. We do not recommend this workaround but are providing this information so that you can implement this workaround at your own discretion. Use this workaround at your own risk.

Warning This article offers information about how to work around issues that are caused by changes in this release of Windows Help. However, Microsoft makes no specific recommendations about which registry keys and which values are right for your organization. Your IT department is the best judge of how to weigh the advantages of these workarounds against the risks of using them. The safer course is to use no registry workarounds at all.

The WinHlp32.exe download provides Group Policy settings and registry entries to work around two known issues in this release of Windows Help. By using the following Group Policy settings or registry entries, network administrators and individual users can re-enable macros and unblock .hlp files that are stored on intranet sites. A local computer Group Policy setting and a current user Group Policy setting are provided as a workaround for each feature. You can also use a user registry setting to manage each feature.

For each feature, precedence is given in the following order:

• 
  Local computer Group Policy
  
• 
  Current user Group Policy
  
• 
  User registry setting
  

If a policy has not been set for a feature, and the user registry setting for the feature has not been set, the features will behave as described in the "Known issues" section.