Fatal Error

myauntsally[CodePlex]
Version: 1.6.13.2
Description:
Error: System.IO.FileLoadException: Could not load file or assembly 'HydroDesktop.SplashScreenManager, Version=1.6.13.2, Culture=neutral, PublicKeyToken=null' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)

File name: 'HydroDesktop.SplashScreenManager, Version=1.6.13.2, Culture=neutral, PublicKeyToken=null' ---gt System.NotSupportedException: An attempt was made to load an assembly from a network location which would have caused the assembly to be sandboxed
in previous versions of the .NET Framework. This release of the .NET Framework does not enable CAS policy by default, so this load may be dangerous. If this load is not intended to sandbox the assembly, please enable the loadFromRemoteSources switch. See
http://go.microsoft.com/fwlink/?LinkId=155569 for more information.

at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMarkamp stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)

at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMarkamp stackMark, Boolean forIntrospection, Boolean suppressSecurityChecks)

at System.Reflection.Assembly.Load(AssemblyName assemblyRef)
at System.ComponentModel.Composition.Hosting.AssemblyCatalog.LoadAssembly(String codeBase)

at System.ComponentModel.Composition.Hosting.AssemblyCatalog..ctor(String codeBase, ICompositionElement definitionOrigin)

at DotSpatial.Extensions.SplashScreens.SplashScreenHelper.GetSplashScreenManager()

at DotSpatial.Controls.AppManager.LoadExtensions()
at HydroDesktop.MainApplication.MainForm..ctor()
at HydroDesktop.MainApplication.Program.Main(String[] args)

Start with the failure path in DotSpatial.Extensions.SplashScreens.SplashScreenHelper.GetSplashScreenManager(), then trace how DotSpatial.Controls.AppManager.LoadExtensions() reaches HydroDesktop.MainApplication.MainForm and Program.Main. Reproduce the assembly-loading error and determine the expected startup behavior; done means the application starts without this FileLoadException and the relevant loading path is verified.

Written by the indexing model from the issue text.