Am 01.03.2016 um 17:54 schrieb Allin Cottrell:
 On Tue, 1 Mar 2016, Summers, Peter wrote:
> At least on my Windows 7 desktop, the documentation gets removed by
> the uninstaller automatically. 
Yeah, you've spotted the underlying problem that I'm too lazy to 
uninstall before installing a new version...
 AcroRd32.exe /A "nameddest=chap:dpanel" gretl-guide.pdf
 But at present when opening a PDF file on Windows we use the
 ShellExecute API (Windows gets to decide how to open the file), and I'm
 pretty sure the syntax above will not work with other PDF viewers. Maybe
 we can try to detect if AcroRd32 is the default PDF viewer and if so,
 call it specifically with a suitable option.
 
Personally I like PDF a lot, but all this non-standardization sounds 
like it could be solved using web formats. So perhaps this would be an 
argument to move the help output format to HTML5 + MathML + 
WhateverML.... ? Given that Gretl already does a lot of XML maybe that 
wouldn't even be too painful. Just thinking out loud...
cheers,
sven