ASP MVC 2 in Sharepoint 2007 Security Exception - asp.net-mvc-2

Question

I am trying to configure ASP MVC 2 Framework to run within a SharePoint 2007 install on IIS 6.0. I have managed to get the two web.config setups together, and made GAC and global.asax changes.
When I try to access the MVC application within the SharePoint domain (http://Sharepoint.com/MVCApp), I get a security exception.
**Source Error:**
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
**Stack Trace:**
[SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
System.Web.Mvc.BuildManagerWrapper.System.Web.Mvc.IBuildManager.GetReferencedAssemblies() +14
System.Web.Mvc.TypeCacheUtil.FilterTypesInAssemblies(IBuildManager buildManager, Predicate`1 predicate) +88
System.Web.Mvc.TypeCacheUtil.GetFilteredTypesFromAssemblies(String cacheName, Predicate`1 predicate, IBuildManager buildManager) +65
System.Web.Mvc.AreaRegistration.RegisterAllAreas(RouteCollection routes, IBuildManager buildManager, Object state) +80
System.Web.Mvc.AreaRegistration.RegisterAllAreas(Object state) +55
System.Web.Mvc.AreaRegistration.RegisterAllAreas() +7
CapExRequest.MvcApplication.Application_Start() in C:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\Projects\CapExRequest\CapExRequest\Global.asax.cs:29
--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.3603; ASP.NET Version:2.0.50727.3614
I have tried adding permissions to the MachineName\ASPNET account for the \MVCApplication as suggested in one article. No joy.
Other occurences seem to be related to accessing a remote file share. There is no remote file share in my instance.
Any thoughts, suggestions, answers??

Answer 1

So, here is what the setup is, and the steps taken to get it all together...
Followed basic instructions for
running an ASP.NET MVC application in SharePoint (see link below), but I put the
custom MVCHttpApplication in it's own
project and created a standalone
assembly;
Updated SharePoint to include AJAX
3.5 (ours was only referencing 1.0 standalone);
Built a signed application and
deployed to the virtual directory,
including adding the application
assembly in the GAC.
Actually pretty straight-forward so far. It just took a while to come to my senses.
"Using ASP>NET with Sharepoint Publishing" http://vspug.com/mbailey/files/2010/04/Using-ASP.NET-MVC-2-with-Sharepoint-Publishing.pdf