Re: [h-e-w] Fwd: Windows 10 Taskbar Behavior

[Rob Davenport]

The start menu is involved because I noticed when monitoring file/registry 
activity during the act of pinning Emacs, I saw that windows was looking at the 
Emacs.lnk file that happened to be in my Start Menu.   That shortcut didn't 
have an AppID.  When I put GNU.Emacs in for the AppID, *then* pinning correctly 
created a pinned shortcut with the AppID.  

I assume when pinning, Windows looks for various clues as to what AppID to give 
the shortcut.  It also looks in the registry for things too.  I assume it 
wasn't able to determine what AppID to use for me until I set it in the 
shortcut in my Start Menu.

Does the shortcut icon on your desktop have the AppID set?  How did you create 
that shortcut?  
(I just tried dragging runemacs.exe with a right-click and choosing "Create 
Shortcut here" and that one did not have an AppID.)  

I'm not sure how the one in my start menu got the app id.  I suspected I must 
have run addpm at some time and that added the appid, but it doesn't have code 
to do that.  (And running addpm used to be necessary or at least very useful - 
moreso than recently, so I know I've run it occasionally to set registry 
entries and environment variables, but I typically don't.  But I remembered it 
when see the Start Menu being examined during pinning and thought that using 
addpm might be a difference in what I do that could be causing different 
behavior.)

Rob

-----Original Message-----
From: Eli Zaretskii [mailto:address@hidden 
Sent: Thursday, October 15, 2015 4:27 PM
To: Rob Davenport <address@hidden>
Cc: address@hidden; address@hidden; address@hidden
Subject: Re: [h-e-w] Fwd: Windows 10 Taskbar Behavior

> From: Rob Davenport <address@hidden>
> CC: "address@hidden" <address@hidden>,
>       "address@hidden" <address@hidden>
> Date: Thu, 15 Oct 2015 19:45:19 +0000
> 
> <time passes...>
> I have now tried it on a Windows 8 machine.  I started Emacs via 
> runemacs.exe, pinned it to the taskbar and the shortcut *does* have the AppID.
> I tried running emacs.exe.   Got two windows as expected.   When I tried 
> pinning the console window emacs.exe, the shortcut did *not* have the AppID.
> When I tried pinning the GUI windows of Emacs.exe, the shortcut *did* have 
> the AppID.
> 
> On Windows 7, I used procmon and watched what files and registry entries are 
> hit when pinning.  Noticed that the Emacs.lnk under the Start 
> Menu\Programs\Gnu Emacs\ folder was getting queried.  I checked *that* link 
> and sure enough, it did *not* have any AppID.  Hmm.   I tried giving it a 
> test AppID of "MyAppID" - then, launched Emacs via that shortcut and pinned 
> it.  I got another taskbar icon, in addition to the running Emacs, but no 
> AppID.  Then I gave the StartMenu Emacs.lnk the 'GNU.Emacs' AppID, launched 
> and pinned it.  Now the taskbar shortcut *has* the GNU.Emacs AppID.     So it 
> can work on Windows 7 for me.  

Sorry, I got lost here somewhere.  What does the Start Menu have to do with 
this issue?

> I typically launch Emacs via a command prompt alias - not the Start Menu.  
> (How do you normally start Emacs?  Start Menu shortcut, or some other means?) 
>  I suspect that might be the difference in our experience in what lnks get 
> the AppID in various OS's.

I start Emacs from a desktop icon that invokes runemacs.exe.

> The addpm program will create the Start Menu shortcut, but I don't see code 
> in there that would set the AppID.  Perhaps it should?

I never use addpm.  Why do you use it?