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Issue while deploying Web App with Telerik Controls

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Meera
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Meera asked on 30 Aug 2012, 12:37 PM
Hi,

We have developed a web application using VS 2008 and Telerik controls (RadControls_for_ASP.NET_AJAX_2009_3_1314_dev). We are using RadGrid and RadWindow in the application and it is working fine on the development machine (running Windows XP 32 bit).

We are trying to deploy the application on a Windows Server 2008 R2 (64 bit).  The RadControls do not seem to work correctly. The RadGrid is used within the RadWindow and the RadWindow does not load completely. The browser shows a message stating that 'An Add-on for this website failed to run'. There is no other error message and all other pages seem to be working fine. The browser being used is IE 9.0 and the web server used is IIS 7.5

Is there something that we are missing? We would be very grateful for any suggestions or help.

Thanks
Meera

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Marin Bratanov
Telerik team
answered on 03 Sep 2012, 11:18 AM
Hi Meera,

The version you are using is almost three years old and IE9 was not around when it was created. The first version that supports IE9 is Q1 2011, yet I advise that you upgrade to the latest version which is currently Q2 2012 SP1. You can also check this thread for a temporary override that may enable the RadWindows to work under IE9 with your version until you upgrade. You can also examine the x-ua compatible meta tag to get IE9 to use IE8 mode.

Regarding the error message related to the browser add-on - the error IE9 causes for older versions of the RadWIndow is a DOM error 5 and not this browser message. This means that it is possible that some content (e.g. a Java applet, a flash object, a PDF) requires some plugin that is broken on the browser you use, so I would advise that you check this as well, because it may not be related to the RadControls, but to the browser and the page's content.


Greetings,
Marin Bratanov
the Telerik team
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