System.Windows.Forms 1.0.5000.0 2.0.0.0 System.Object You cannot create a new instance of the class. To provide Help for an application, call the static and methods. You can use to show compiled Help files (.chm) or HTML files in the HTML Help format. Compiled Help files provide a table of contents, an index, search capability, and keyword links in pages. Shortcuts work only in compiled Help files. You can generate HTML Help 1.x files by using HTML Help Workshop. For more information about HTML Help, see "HTML Help Workshop" and other HTML Help topics at Microsoft HTML Help. Encapsulates the HTML Help 1.0 engine. Method System.Void The parameter can be of the form C:\path\sample.chm or /folder/file.htm. Displays the contents of the Help file at the specified URL. A that identifies the parent of the Help dialog box. The path and name of the Help file. 1.0.5000.0 2.0.0.0 Method System.Void The parameter can be of the form C:\path\sample.chm or /folder/file.htm. If you provide the keyword null, the table of contents for the Help file will be displayed. Displays the contents of the Help file found at the specified URL for a specific keyword. A that identifies the parent of the Help dialog box. The path and name of the Help file. The keyword to display Help for. 1.0.5000.0 2.0.0.0 Method System.Void The parameter can be of the form C:\path\sample.chm or /folder/file.htm. Compiled Help files provide table of contents, index, search, and keyword links in pages. You can use the following values for the parameter: , , , or . Displays the contents of the Help file found at the specified URL for a specific topic. A that identifies the parent of the Help dialog box. The path and name of the Help file. One of the values. 1.0.5000.0 2.0.0.0 Method System.Void Compiled Help files provide table-of-contents, index, search, and keyword links in pages. You can use the parameter to provide additional refinement of the , , , or command. If the value specified in the parameter is , , or , this value should be an empty string. If the parameter references , , , or , this value should be a string that contains the topic name, or the keyword or numeric identifier of the topic to display. The parameter can be of the form C:\path\sample.chm or /folder/file.htm. Displays the contents of the Help file located at the URL supplied by the user. A that identifies the parent of the Help dialog box. The path and name of the Help file. One of the values. A string that contains the topic identifier. 1.0.5000.0 2.0.0.0 Method System.Void The parameter can be of the form C:\path\sample.chm or /folder/file.htm. Displays the index of the specified Help file. A that identifies the parent of the Help dialog box. The path and name of the Help file. 1.0.5000.0 2.0.0.0 Method System.Void To be added. Displays a Help pop-up window. A that identifies the parent of the Help dialog box. The message to display in the pop-up window. A value that specifies the horizontal and vertical coordinates at which to display the pop-up window, relative to the upper-left corner of the screen. 1.0.5000.0 2.0.0.0