1 files changed, 46 insertions, 1 deletions
diff --git a/src/SMAPI.Installer/Program.cs b/src/SMAPI.Installer/Program.cs
index 8f328ecf..4d259fd3 100644
--- a/src/SMAPI.Installer/Program.cs
+++ b/src/SMAPI.Installer/Program.cs
@@ -1,17 +1,62 @@
-namespace StardewModdingApi.Installer
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.IO;
+using System.Reflection;
+using StardewModdingAPI.Internal;
+
+namespace StardewModdingApi.Installer
 {
     /// <summary>The entry point for SMAPI's install and uninstall console app.</summary>
     internal class Program
     {
         /*********
+        ** Properties
+        *********/
+        /// <summary>The absolute path to search for referenced assemblies.</summary>
+        [SuppressMessage("ReSharper", "AssignNullToNotNullAttribute", Justification = "The assembly location is never null in this context.")]
+        private static string DllSearchPath;
+
+
+        /*********
         ** Public methods
         *********/
         /// <summary>Run the install or uninstall script.</summary>
         /// <param name="args">The command line arguments.</param>
         public static void Main(string[] args)
         {
+            // set up assembly resolution
+            string installerPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
+            Program.DllSearchPath = Path.Combine(installerPath, "internal", EnvironmentUtility.DetectPlatform() == Platform.Windows ? "Windows" : "Mono", "smapi-internal");
+            AppDomain.CurrentDomain.AssemblyResolve += Program.CurrentDomain_AssemblyResolve;
+
+            // launch installer
             var installer = new InteractiveInstaller();
             installer.Run(args);
         }
+
+        /*********
+        ** Private methods
+        *********/
+        /// <summary>Method called when assembly resolution fails, which may return a manually resolved assembly.</summary>
+        /// <param name="sender">The event sender.</param>
+        /// <param name="e">The event arguments.</param>
+        private static Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs e)
+        {
+            AssemblyName name = new AssemblyName(e.Name);
+            foreach (FileInfo dll in new DirectoryInfo(Program.DllSearchPath).EnumerateFiles("*.dll"))
+            {
+                try
+                {
+                    if (name.Name.Equals(AssemblyName.GetAssemblyName(dll.FullName).Name, StringComparison.InvariantCultureIgnoreCase))
+                        return Assembly.LoadFrom(dll.FullName);
+                }
+                catch (Exception ex)
+                {
+                    throw new InvalidOperationException($"Could not load dependency 'smapi-lib/{dll.Name}'. Consider deleting and redownloading the SMAPI installer.", ex);
+                }
+            }
+
+            return null;
+        }
     }
 }