Detecting if WinHelp is Installed on Vista or newer Windows

Question

Is there a reliable way to detect whether or not WinHelp is installed on Windows Vista or newer versions of Windows? If possible, I'd like a solution that's not specific to any particular version of Windows. I've posted this question to other message boards and got back answers regarding the size of Winhlp32.exe before and after installing WinHelp and Registry entries that Microsoft has documented, but none of them were correct. JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

The download for WinHelp from Microsoft appears to be a hotfix (.msu) that enables the WinHelp program. This would explain why the size/registry keys don't change as the hotfix is just a "delta" change from the orginal file. Since it's a hotfix, this means that you should be able to query the installed hotfixes for your OS. The following command generates a .htm document listing all of the installed hotfixes. wmic qfe list full /format:htable >C:\hotfixes.htm The table generated lists the Knowledge Base articles corresponding to the hotfix that is installed. You can search for "917607" because that should be present if you've installed the WinHelp hotfix. You may be able to pass in different options to the utility to perform a better search. NOTE - The wmic command requires admin privileges to run. Link to Microsoft KB Article on WinHelp