The Download Location for the MSO Help File Has Changed

To download the latest version, go to this link: http://andyc.diy-audio-engineering.org/mso/multi-sub_opt.chm

What To Do If the Help File Display is Blank

If the display of the help file shows up as blank, perform the following steps to allow it to be displayed:

• Right-click the .CHM file and choose “Properties”.
• On the “General” tab, click the button labeled "Unblock".
• Click on “Ok”.

For more information, see this Microsoft web page.