Could not load file or assembly

System.IO.FileNotFoundException was unhandled
  Message="Could not load file or assembly 'MyHost, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified."
  Source="mscorlib"
  FileName="MyHost, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null"
  FusionLog="=== Pre-bind state information ===
LOG: User = MINDY2\\aj
LOG: DisplayName = MyHost, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null\n (Fully-specified)
LOG: Appbase = file:///C:/Documents and Settings/aj/My Documents/Host/
LOG: Initial PrivatePath = C:\\Documents and Settings\\aj\\My Documents\\Host\\bin
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\\Documents and Settings\\aj\\My Documents\\Host\\web.config
LOG: Using machine configuration file from c:\\WINDOWS\\Microsoft.NET\\Framework\\v2.0.50727\\config\\machine.config.
LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: Attempting download of new URL file:///c:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/foo/c94177b4/4af4c657/MyHost.DLL.
LOG: Attempting download of new URL file:///c:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/foo/c94177b4/4af4c657/MyHost/MyHost.DLL.
LOG: Attempting download of new URL file:///C:/Documents and Settings/aj/My Documents/Host/bin/MyHost.DLL.
LOG: Attempting download of new URL file:///C:/Documents and Settings/aj/My Documents/Host/bin/MyHost/MyHost.DLL.
LOG: Attempting download of new URL file:///c:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/foo/c94177b4/4af4c657/MyHost.EXE.
LOG: Attempting download of new URL file:///c:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/foo/c94177b4/4af4c657/MyHost/MyHost.EXE.
LOG: Attempting download of new URL file:///C:/Documents and Settings/aj/My Documents/Host/bin/MyHost.EXE.
LOG: Attempting download of new URL file:///C:/Documents and Settings/aj/My Documents/Host/bin/MyHost/MyHost.EXE.
"
  StackTrace:
       at System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
       at System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
       at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
       at System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
       at System.Reflection.Assembly.Load(String assemblyString)
       at System.UnitySerializationHolder.GetRealObject(StreamingContext context)
       at System.Web.Hosting.HostingEnvironment.CreateInstance(Type type)
       at System.Web.Hosting.ApplicationManager.CreateInstanceInNewWorkerAppDomain(Type type, String appId, VirtualPath virtualPath, String physicalPath)
       at System.Web.Hosting.ApplicationHost.CreateApplicationHost(Type hostType, String virtualDir, String physicalDir)
       at AspHostTest.MyAspHost.Main(String[] args)
  InnerException: