I have an asp.net application in which I have built few silverlight based pages. The problem is that most of our users do not have install priviledges on their system and they cannot install Silverlight plug-in themselves. Our IT Support will not agree installing Silverlight on all 4000 machines.
Is their something we can do so that users may not be asked to install the Silverlight plug-in and still the Silverlight pages being displayed to them.
Is there a workaround ?
No, you need either Silverlight on Windows or Mac, or Moonlight on Linux to run Silverlight applications.
The workaround is to not use Silverlight for browsers that don't have the Silverlight plugin. There are ways to detect Silverlight server-side (although they're mostly hacks). If you detect Silverlight, push down a Silverlight-enabled page. If you do not detect Silverlight, push down plain HTML and/or AJAX.
If the client cannot render the silverlight, then it just renders whatever is inside of the object tag. In your case, instead of a "get silverlight" link, this could be a non interactive version of your page.
On the off chance that your Silverlight pages are simple, IE will render a XAML page. Of course, this will only work with the simplest content, and it would be non-compiled xaml, like an HTML page. If you save the following example as "whatever.xaml" and browse to it, it will render in IE.
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
>
<Grid x:Name="LayoutRoot" Background="Orange">
<TextBlock>Alex</TextBlock>
</Grid>
</UserControl>