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I noticed the other day when running eclipse that I can't pin the Eclipse exe directly (I can pin the shortcut to start it, however once started, it seems to open another application that uses the Java SDK, and that can't be pinned).

It got me thinking: Why can't you pin everything to the taskbar? What are the restrictions on programs? In the case of my Eclipse example, I believe that it could be because its running the Java program in the background, but the same thing happens for programs such as Starcraft 2.

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Image of me being unable to pin eclipse to the taskbar: db.tt/PlAqxM2n –  Gareth Jones Jun 13 '12 at 6:56
The same happens for minecraft, once your in game (after logging in) you cant pin it to the taskbar –  Gareth Jones Jun 13 '12 at 7:07

2 Answers 2

up vote 2 down vote accepted

Those apps are actually a multi process app. A tiny launcher (in the case of Starcraft) or a runtime (Java for Eclipse and Minecraft) are started by your shortcut, which in turn load your application main process. If those starter don't assign a correct AppUserModelIDs, which essentially just an identifier for the taskbar, they can't be pinned.

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Ah ok, that also explains why other games with launchers can be pinned –  Gareth Jones Jun 13 '12 at 22:02

I just started and pin my eclipse.exe on the taskbar.

Pin Eclipse

And hope this will help also:

Microsoft Answers

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Post a link to your image on an image sharing site, and we'll put it in for you. –  user3463 Jun 13 '12 at 6:33
However this is not the answer, you didn't get what OP asked? –  avirk Jun 13 '12 at 6:52
I get what he ask and just showed with my eclipse. Also i can pin every single program that i have current installed. –  Jason Paddle Jun 13 '12 at 6:54
However im not asking if you can pin them, im asking why some programs might not be able to be pinned? Also i can pin most programs to my task bar, just not all –  Gareth Jones Jun 13 '12 at 7:05
Ok, check this. Here is explained why some programs and files can`t be pin. registry edit –  Jason Paddle Jun 13 '12 at 7:17

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