I have 1 computer out of about 10 I've tested that won't run clickonce apps.
The apps run on every other system I have tried.  I even tried a windowsapp1
that doesn't do anything but show a form.  It goes through all the download
stuff, launches the app, the app show up in task manager for about a minute
then goes away without showing the form or anything or logging any errors.
Does anyone have any ideas on where to start debugging.

Thanks

i guess you have multiple problem here , better you debug the app
locally before deploying to click once.

Do check the follwoing

1. Does your application eating up any exception.
2 . Does it run locally ?

Check this link out.

http://msdn.microsoft.com/msdnmag/issues/04/05/ClickOnce/

It runs on the system I am having trouble with if I  copy the full exe from
the bin on the dev box to the system I am having trouble with.  It also runs
as a click once app on every other box I have tried so far.  I have also
tried running an app that just shows a form and it runs on every box except
for the one I am having trouble with.  I also put message boxes at a bunch
of pints in the code and it never hits the first one.






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Since ClickOnce Deployment more or less, sandboxes applications deployed
using ClickOnce , it could be a permissions problem on the system you are
having problems with. Since it works everywhere else, and not on a
particular system, except when the  exe file is just copied over to the
problem system and then it runs. I would suspect a problem with permissions
on that system or it is also possible that there are some Windows Update
issues too with that particular box.
If it was a failure with your ClickOnce Deployment setup, then the problem
would exist on all systems you tried to install it on.  The fact that a
completely different app, that was nothing more than a form being displayed,
also lends credence to the problem being local to the computer you are
trying to install on and not a problem with your application or the
ClickOnce Deployment setup you have created. If it's possible, either run
Windows Update on that computer or even at worst, ( if there is no other
choice) re-install Windows on it and get the latest updates again.
james

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Found the problem in another forum.  The problem was with the kensington
mouse driver.  I uninstalled the driver from add/remove programs.  The mouse
stoped working on the last screen, so I powered the system off/on.  When it
came back up the mouse was working with the microsoft driver and the click
once apps worked.

can you explain a bit , how kinston mouse drive can solve your click
once problem

System.Windows.Forms.ColumnHeader and IDisposable
Remoting: security and app.config
Serialize a Strategy Pattern List of objects with out xsi:type.
Serial Port Class & Component
XSL - The variable or parameter '...' is either not defined or it is out of scope.