http://blogs.msdn.com/b/profiler/archive/2011/02/10/how-to-profile-asp-net-and-silverlight-at-the-same-time.aspxIn Visual Studio 2010 SP1 we enabled the ability to profile Silverlight applications from the Visual Studio UI.&#160; Unfortunately there is a limitation where we cannot automatically attach to multiple processes on launch from inside Visual Studio, soen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/profiler/archive/2011/02/10/how-to-profile-asp-net-and-silverlight-at-the-same-time.aspx#10151383Fri, 08 Apr 2011 14:06:09 GMT91d46819-8472-40ad-a661-2c78acb4018c:10151383Mobbe<p>Thanks, I changed the setting on my AppDomain in IIS to 32 and now I am able to profile. </p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10151383" width="1" height="1">http://blogs.msdn.com/b/profiler/archive/2011/02/10/how-to-profile-asp-net-and-silverlight-at-the-same-time.aspx#10151050Thu, 07 Apr 2011 17:21:55 GMT91d46819-8472-40ad-a661-2c78acb4018c:10151050Andrew B Hall - MSFT<p>@Mobbe, are you running your ASP.NET site inside IIS? &nbsp;If so, it sounds like IIS is running as a 64 bit process, since IE is running as a 32bit process, you&#39;ll need to change your IIS threadpool to 32bit in order to profile them at the same time</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10151050" width="1" height="1">http://blogs.msdn.com/b/profiler/archive/2011/02/10/how-to-profile-asp-net-and-silverlight-at-the-same-time.aspx#10151030Thu, 07 Apr 2011 16:19:26 GMT91d46819-8472-40ad-a661-2c78acb4018c:10151030Mobbe<p>Following the instructions for attaching. I have one IE8 running with one tab so I pick the ieprocess without the name. When I do I get a message saying &quot; It is not possible to profile 32-bit and 64-bit at the same time&quot;. I am running on Windows 7 Enterprise 64 bit OS, with IE8, VS.NET 2010 SP1 and the latest Silverlight 4 bits. Any ideas how to get around this would be great. Thanks</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10151030" width="1" height="1">http://blogs.msdn.com/b/profiler/archive/2011/02/10/how-to-profile-asp-net-and-silverlight-at-the-same-time.aspx#10150167Tue, 05 Apr 2011 19:29:37 GMT91d46819-8472-40ad-a661-2c78acb4018c:10150167Andrew B Hall - MSFT<p>@tomas.k have you installed SP1, there were changes in IE9 that require updates in the Visual Studio 2010 SP1 to profile against IE9 </p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10150167" width="1" height="1">http://blogs.msdn.com/b/profiler/archive/2011/02/10/how-to-profile-asp-net-and-silverlight-at-the-same-time.aspx#10146840Mon, 28 Mar 2011 21:10:23 GMT91d46819-8472-40ad-a661-2c78acb4018c:10146840tomas.k<p>Hi, </p> <p>I have problem that when I attach to IE (v9) the whole browser crash! After that when I start to analyze the vsp file, there are only data from web (sever) part, the Visual Studio crash too! So what is it?</p> <p>Thank you </p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10146840" width="1" height="1">http://blogs.msdn.com/b/profiler/archive/2011/02/10/how-to-profile-asp-net-and-silverlight-at-the-same-time.aspx#10133387Thu, 24 Feb 2011 07:15:55 GMT91d46819-8472-40ad-a661-2c78acb4018c:10133387Andrew B Hall - MSFT<p>Currently Silverlight only supports CPU sampling, so Silvelight applications cannot be instrumented</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10133387" width="1" height="1">http://blogs.msdn.com/b/profiler/archive/2011/02/10/how-to-profile-asp-net-and-silverlight-at-the-same-time.aspx#10133330Thu, 24 Feb 2011 02:49:02 GMT91d46819-8472-40ad-a661-2c78acb4018c:10133330Gary<p>Thanks,But how can I instument a SL app?</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10133330" width="1" height="1">