New runat="server" div element on aspx, does it require compiling?
<p>A new div element with a runat="server" property added to an ASP.NET presentation control does not required compilation to become active, but can anyone explain why this works without a rebuild? If you were to perform a rebuild would the assemblies contain any new information?</p>

<p>I have a fix for a current project which involves the addition of a new runat="server" div element and I need to know if I can deploy this fix without new assemblies. I know it will work, but I need to know the technical differences (if any) between deploying just the aspx files and deploying the aspx files with a rebuilt dll.</p>

<p>Does anyone know what tools I could use to examine assemblies in this level of detail and perform side-by-side comparisons to identify minor alterations in their content?</p>
