Update HTML Help Workshop link and fix ISHelpGen compile.bat issue. C…

…loses jrsoftware#417.

ISHelp/ISHelpGen/compile.bat

@@ -11,7 +11,7 @@ setlocal
 
 if exist compilesettings.bat goto compilesettingsfound
 :compilesettingserror
-echo ishelp\compilesettings.bat is missing or incomplete. It needs to be created
+echo ishelp\ishelpgen\compilesettings.bat is missing or incomplete. It needs to be created
 echo with the following lines, adjusted for your system:
 echo.
 echo   set DELPHIXEROOT=C:\Program Files\Embarcadero\RAD Studio\20.0 [Path to Delphi 10.3 Rio (or later)]

README.md

@@ -53,7 +53,8 @@ Getting Started
 3. **Install Microsoft HTML Help Workshop**
 
    Install Microsoft HTML Help Workshop if you haven't already done so.
-   See https://www.microsoft.com/en-us/download/details.aspx?id=21138
+   See https://docs.microsoft.com/en-us/previous-versions/windows/desktop/htmlhelp/microsoft-html-help-downloads and 
+   http://web.archive.org/web/20160201063255/http://download.microsoft.com/download/0/A/9/0A939EF6-E31C-430F-A3DF-DFAE7960D564/htmlhelp.exe
 
    Note: Microsoft HTML Help Workshop is only needed to be able to compile the
    help files.