We appreciate your comments and enthusiasm over QuickShow, but as great as the program is, there have got to be some limits for a simple program.
The lack of control keys is based on our observation and past experience with other programs, that some users of QuickShow "stumble" on the keys, and accidentally activate things they didn't mean to. Then they call us and tell us "something mysterious happened", only to find out later that it was due to their carelessness. By removing these, we remove the mysterious problems people occasionally run into, we remove the support phone calls, and we remove the time involved in the user calling us, and in us responding. BEYOND on the other hand has many control keys, and, moreover even the ability for users to assign which keys do what in some places. QuickShow is for beginners. BEYOND is for advanced users.
And actually with all of our software, we purposely install into the root because we know it works with all versions of Windows (all the way from Windows 2000 to Windows 10). QS can be installed and will work on any computer. Note that advanced users can change that choice and install anywhere they want.
Regarding "old help system", the help system is supported by all versions of Windows and it works! It's searchable, and is complete. If you'd rather use a PDF instead, we've prepared one of those as well, and it is installed in a folder under QS.
If you have specific questions or comments that may be addressed (like your original comment, which has been addressed in versions 2.8 and later by the way), we'll be happy to consider them, and indeed this forum is a great place for such questions. But I think the philosophical debates in which you are engaging aren't exactly moving the industry forward, and for that reason that kind of discussion should be conducted either through email, or in person.
If you will be in Frankfurt next week, we can discuss this and many more topics at the Prolight + Sound tradeshow, which is one of the biggest each year.
Best regards,
William Benner