Mozilla Prism applications behave properly as separate pinned icons, so it should be
possible to do. This MSDN article [Application User Model IDs]
(http://msdn.microsoft.com/en-us/library/dd378459(VS.85).aspx) looks to be a good
place to start. The grouping is defined by the App ID, custom App IDs can be set for
processes when they are launched, and Chrome is already designed as a host process
that launches the apps in separate processes. So I think that to fix this the
existing chrome.exe host process needs to know to set a different App ID when
launching application processes, than when launching browser processes.

(No comment was entered for this change.)

(No comment was entered for this change.)

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 Issue 8268  has been merged into this issue.

(No comment was entered for this change.)

 Issue 10884  has been merged into this issue.

(No comment was entered for this change.)

This needs to be fixed in the stable version of Chrome by the launch of Windows 7 
(October 22, 2009). Why? Because unless it is fixed, the Web Apps feature is pretty 
much completely broken. This issue will probably confuse a LOT of people. It is much 
more important even than implementing jumplists or making thumbnail previews for each 
tab. I don't know exactly what the schedule is for shipping versions 3.0 and 4.0 of 
Chrome, but I do know this needs to be fixed in the stable version by the launch of 
Windows 7.
Attached is a screenshot illustrating what happens currently. I have Chromium, a 
Gmail web app, and a Gooogle Reader web app pinned to my taskbar. I started by 
opening my Gmail web app. So far so good. Then I opened the Google Reader app. But 
instead of opening under its own icon, it opens under the Gmail icon. Then I opened 
Chromium, it too opened under Gmail instead of its own icon. So it looks like Google 
Reader and Chromium aren't open, just Gmail. It get's even worse when I close Gmail 
and Chromium, leaving only Google Reader open - under the Gmail icon. This needs to 
be fixed ASAP - it makes web apps a horrible experience on Windows 7.

	Web Apps on taskbar.PNG 890 KB   View   Download

it's true! that happens to me also:)

I agree with  theodorejb.
Windows 7 encourage user to pin applications to the task bar much more than users add 
icons to the quick launch bar, because of the grouping feature frees much space. The 
experience with it is very bad at this moment.

Windows 7 provides a new API to set an application ID on a window (as well as on a 
process). The method needed is called SetCurrentProcessExplicitAppUserModelID and takes 
a string (of max 128 chars)

http://msdn.microsoft.com/en-us/magazine/dd942846.aspx (see text around figure 3)
http://msdn.microsoft.com/en-us/library/dd378422(VS.85).aspx

As there has been a lot of traffic on this issue: as an update I am still waiting on 
the platform SDK to be included in third_party.  For that, the next platform SDK needs 
to be RTM.

http://codereview.chromium.org/159336 will land with a partial fix.  This will keep 
web applications from grouping together, however it will not allow pinning from the 
application frame (chromium is still the pin application name).

A full fix will require Gears to set the application id when it creates the 
shortcut.  I have created an issue for this behavior.

The following revision refers to this bug:
    http://src.chromium.org/viewvc/chrome?view=rev&revision=21595 

------------------------------------------------------------------------
r21595 | brg@chromium.com | 2009-07-24 17:24:57 -0700 (Fri, 24 Jul 2009) | 5 lines
Changed paths:
   M http://src.chromium.org/viewvc/chrome/trunk/src/app/win_util.cc?r1=21595&r2=21594
   M http://src.chromium.org/viewvc/chrome/trunk/src/app/win_util.h?r1=21595&r2=21594
   M http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/browser.cc?r1=21595&r2=21594

Partial fix to 7028 - Pinning in Win7.A complete fix will require Gears to set the application id as a property on the shortcut  As of this cl, web applications hosted by Chrome will appear in their own groups on the task bar.  However, they can not be pinned from the main application window nor can they be pinned from the shortcut.  The former results in Chrome being pinned, and the latter results in a quick start button but does not group web applications under that button.  Instead in the latter case a web appliation will form a new group.

Bug=7028
Test=None.  (When there is a Win7 trybot there may be at test to check if the windows group in the taskbar properly)
Review URL: http://codereview.chromium.org/159336
------------------------------------------------------------------------

The following revision refers to this bug:
    http://src.chromium.org/viewvc/chrome?view=rev&revision=21783 

------------------------------------------------------------------------
r21783 | laforge@chromium.org | 2009-07-27 18:19:36 -0700 (Mon, 27 Jul 2009) | 9 lines
Changed paths:
   M http://src.chromium.org/viewvc/chrome/branches/195/src/app/win_util.cc?r1=21783&r2=21782
   M http://src.chromium.org/viewvc/chrome/branches/195/src/app/win_util.h?r1=21783&r2=21782
   M http://src.chromium.org/viewvc/chrome/branches/195/src/chrome/browser/browser.cc?r1=21783&r2=21782

Merge 21595 - Partial fix to 7028  Pinning in Win7.A complete fix will require Gears to set the application id as a property on the shortcut  As of this cl, web applications hosted by Chrome will appear in their own groups on the task bar.  However, they can not be pinned from the main application window nor can they be pinned from the shortcut.  The former results in Chrome being pinned, and the latter results in a quick start button but does not group web applications under that button.  Instead in the latter case a web appliation will form a new group.

Bug=7028
Test=None.  (When there is a Win7 trybot there may be at test to check if the windows group in the taskbar properly)
Review URL: http://codereview.chromium.org/159336

TBR=brg@chromium.com

Review URL: http://codereview.chromium.org/159468
------------------------------------------------------------------------

When you create an application shortcut in Windows 7, then close all Chrome Windows and 
open that application, the icon in the taskbar for that application is really low-res 
(I'm using Google Reader as my example). But if I click a link in Google Reader that 
opens up the main Chrome browser (under the Google Reader icon), its icon is nice and 
high-res. Everything about application shortcuts (under Windows 7) seems so buggy right 
now.

	Windows 7 app shortcuts.PNG 452 KB   View   Download

i agree.  this is the issue i MOST want fixed.  been running windows 7 release 
candidate, and i was hoping this would be fixed before now.

I notice the low-resolution icon in the taskbar when using my gmail application
shortcut.  Then if I open a new Chrome window, it also has the Gmail icon, but it is
higher resolution.

Also, I noticed today that I have jumplist options for the Google Chrome entry in my
start menu on my Win7 desktop system, but I do not on my laptop.  However, I then
noticed that I *do* have a jumplist for Chrome, it just happens to be attached to my
Gmail application shortcut.  So that might be something to watch out for when working
on the application shortcuts.

(No comment was entered for this change.)

Same kind of problem here. Using the developer release of Google Chrome...build 
4.0.221.6 on Windows 7 RC. 
As a result of this bug my Google Reader Shortcut is being pined in the quick launch 
bar as a Google Chrome browser shortcut. Clicking on the Chrome shortcut when Google 
Reader is open simply opens another instance of Google Reader in the taskbar ignoring 
the original one.

	problem.png 643 KB   View   Download

Exactly same problem here!

theodorejb,

(in reply to comment 18).

Thank you for your comment and sorry for my slow response.

I would like to describe why your issue happens.
When Chrome is not running, it uses an icon file created by Gears, whose resolution is not so good as you wrote in your comment.
On the other hand, when Chrome is launched as an application, it retrieves a high-resolution icon and updates its taskbar icon.

To fix this problem, we need to change Gears to make it create a high-resolution icon when it creates an application icon. As written in comment 15, 
we filed an issue for such behaviors of Gears and we have been waiting for Gears people to fix it.
Sorry for your inconvenience,

Regards,

codypredy,

(in reply to comment 22)

This is the issue described by brg in his comment 15, and we have been waiting for 
Gears people to fix it.

Sorry for your inconvenience.

Regards,

hbono -- I briefly looked at the gears Issues page and saw nothing relating to icon
size.  You mentioned you filed an issue there?  Maybe if you link the issue here
those who want to see this fixed can star it; I don't know how much those are used to
set priorities, though.

(No comment was entered for this change.)

Just to update that I am working on  issue 25528  which intends to replace gears with 
native code to create web app shortcuts. It will support "pinning" on Win7 in the 
create shortcut dialog.

(No comment was entered for this change.)

@28: thank you for dedicating your time to this. it will be a greatly appreciated fix!

Updating labels:
Area-UI-Features replaces Area-BrowserUI

right ive pinnedgoogle chrome and my two google chrome web apps to my task bar (google 
calendar, mail). when I open them, unlike other web apps, they produce a second icon on 
the taskbar. With other web apps the original icon just becomes embossed and NO second 
icon is produced.

Is this all part of the same problem? is it being fixed? has it been fixed? am i 
supposed to do something?

	Capture.JPG 24.6 KB   View   Download

****corrected my previous post******  sorry!!

right ive pinned google chrome and my two google chrome web apps to my task bar 
(google calendar, gmail). When I open them, unlike other pinned applications, they 
produce a second icon on the taskbar. With other web apps the original icon just 
becomes embossed and NO second icon is produced.

Is this all part of the same problem? is it being fixed? has it been fixed? am i 
supposed to do something

stuartmees,

Thank you for your comments.

> Comment 33 by stuartmees, Today (13 hours ago)
> ****corrected my previous post******  sorry!!
>
> right ive pinned google chrome and my two google chrome web apps to my task bar 
> (google calendar, gmail). When I open them, unlike other pinned applications, they 
> produce a second icon on the taskbar. With other web apps the original icon just 
> becomes embossed and NO second icon is produced.
>
> Is this all part of the same problem? is it being fixed? has it been fixed? am i 
> supposed to do something

It seems your problem is Issue 28104 <http://crbug.com/28104>, which is a regression caused when we changed the Application ID of 
Chrome.
To describe the background of your issue briefly, Windows 7 uses a new "Application ID" to attach a window to a taskbar icon. So, your 
problem happens when the Application ID of a taskbar icon is different from the one of a window. Even though this issue can be fixed by 
re-pin Chrome and its installed applications as written in <http://crbug.com/28104>, some people still report this issue is not fixed 
and we are investigating it.
Sorry for your inconveniences.

Regards,

Hironori Bono

(No comment was entered for this change.)

@hbono, thanks!  However, this workaround will work only for the "main" chrome window, 
not for webapp links (gmail, calendar, etc) -- at least on chrome stable.  

More specifically, if I start the gears-created gmail app shortcut and left-click on 
it's taskbar icon, it appears as a "chrome" instance. As soon as I pin it, it's icon 
changes from gmail to chrome.  If I close gmail and restart it, I get a regular chrome 
window, not gmail.

spapadim,

Thank you for your feedback.

> Comment 36 by spapadim, Jan 08 (3 days ago)
> @hbono, thanks!  However, this workaround will work only for the "main" chrome
> window, not for webapp links (gmail, calendar, etc) -- at least on chrome stable.  
>
> More specifically, if I start the gears-created gmail app shortcut and left-click
> on it's taskbar icon, it appears as a "chrome" instance. As soon as I pin it,
> it's icon changes from gmail to chrome.  If I close gmail and restart it, I get
> a regular chrome window, not gmail.

It may be  Issue 30414  <http://crbug.com/30414>. As written in Issue 28104 and  Issue 30414 , we noticed some problems when we 
changed the Application ID of Chrome to fix this issue. To track each problem correctly, we divided this issue into several 
small issues from the technical point of view. So, I recommend to add your comments about the workaround to Issue 28104 or 
 Issue 30414 .

I would like to mark this issue as "fixed" since this issue has been technically covered by the above issues. Nevertheless, 
please feel free to add you comments here if you have problems with pinned web applications. :)

Regards,

Hironori Bono

"It seems your problem is Issue 28104 <http://crbug.com/28104>, which is a regression 
caused when we changed the Application ID of 
Chrome.
To describe the background of your issue briefly, Windows 7 uses a new "Application 
ID" to attach a window to a taskbar icon. So, your 
problem happens when the Application ID of a taskbar icon is different from the one 
of a window. Even though this issue can be fixed by 
re-pin Chrome and its installed applications as written in <http://crbug.com/28104>, 
some people still report this issue is not fixed 
and we are investigating it.
Sorry for your inconveniences.

Regards,

Hironori Bono"

Cheers mate! that worked a treat!