diff --git a/src/DigitalData.ActiveDirectory.API/Program.cs b/src/DigitalData.ActiveDirectory.API/Program.cs
index 9a33468..bf15764 100644
--- a/src/DigitalData.ActiveDirectory.API/Program.cs
+++ b/src/DigitalData.ActiveDirectory.API/Program.cs
@@ -1,3 +1,4 @@
+using DigitalData.ActiveDirectory;
 using DigitalData.ActiveDirectory.API.Middleware;
 
 var builder = WebApplication.CreateBuilder(args);
@@ -9,6 +10,12 @@ builder.Services.AddControllers();
 builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddSwaggerGen();
 
+builder.Services.AddActiveDirectory(options =>
+{
+    options.ConfigActiveDirectory(builder.Configuration.GetSection("ActiveDirectory"));
+    options.MediatRLicenseKey = builder.Configuration["MediatRLicense"];
+});
+
 var app = builder.Build();
 
 app.UseMiddleware<ExceptionHandlingMiddleware>();
diff --git a/src/DigitalData.ActiveDirectory.API/appsettings.json b/src/DigitalData.ActiveDirectory.API/appsettings.json
index 10f68b8..cf261e8 100644
--- a/src/DigitalData.ActiveDirectory.API/appsettings.json
+++ b/src/DigitalData.ActiveDirectory.API/appsettings.json
@@ -5,5 +5,11 @@
       "Microsoft.AspNetCore": "Warning"
     }
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "ActiveDirectory": {
+    "Path": "LDAP://DD-VMP01-DC01/DC=dd-gan,DC=local,DC=digitaldata,DC=works",
+    "Username": "FABRIK19-User01",
+    "Password": "9bWOr0UGuHn_7VkC"
+  },
+  "MediatRLicense": "eyJhbGciOiJSUzI1NiIsImtpZCI6Ikx1Y2t5UGVubnlTb2Z0d2FyZUxpY2Vuc2VLZXkvYmJiMTNhY2I1OTkwNGQ4OWI0Y2IxYzg1ZjA4OGNjZjkiLCJ0eXAiOiJKV1QifQ.eyJpc3MiOiJodHRwczovL2x1Y2t5cGVubnlzb2Z0d2FyZS5jb20iLCJhdWQiOiJMdWNreVBlbm55U29mdHdhcmUiLCJleHAiOiIxNzg0ODUxMjAwIiwiaWF0IjoiMTc1MzM2MjQ5MSIsImFjY291bnRfaWQiOiIwMTk4M2M1OWU0YjM3MjhlYmZkMzEwM2MyYTQ4NmU4NSIsImN1c3RvbWVyX2lkIjoiY3RtXzAxazB5NmV3MmQ4YTk4Mzg3aDJnbTRuOWswIiwic3ViX2lkIjoiLSIsImVkaXRpb24iOiIwIiwidHlwZSI6IjIifQ.ZqsFG7kv_-xGfxS6ACk3i0iuNiVUXX2AvPI8iAcZ6-z2170lGv__aO32tWpQccD9LCv5931lBNLWSblKS0MT3gOt-5he2TEftwiSQGFwoIBgtOHWsNRMinUrg2trceSp3IhyS3UaMwnxZDrCvx4-0O-kpOzVpizeHUAZNr5U7oSCWO34bpKdae6grtM5e3f93Z1vs7BW_iPgItd-aLvPwApbaG9VhmBTKlQ7b4Jh64y7UXJ9mKP7Qb_Oa97oEg0oY5DPHOWTZWeE1EzORgVr2qkK2DELSHuZ_EIUhODojkClPNAKtvEl_qEjpq0HZCIvGwfCCRlKlSkQqIeZdFkiXg"
 }
diff --git a/src/DigitalData.ActiveDirectory/DependencyInjection.cs b/src/DigitalData.ActiveDirectory/DependencyInjection.cs
index 5ef9f6f..87f5df7 100644
--- a/src/DigitalData.ActiveDirectory/DependencyInjection.cs
+++ b/src/DigitalData.ActiveDirectory/DependencyInjection.cs
@@ -7,7 +7,7 @@ public static class DependencyInjection
 {
     public static IServiceCollection AddActiveDirectory(this IServiceCollection services, Action<ADConfigurationOptions>? options = null)
     {
-        var cOptions = new ADConfigurationOptions();
+        var cOptions = new ADConfigurationOptions(services);
         options?.Invoke(cOptions);
 
         services.AddMediatR(cfg =>
@@ -16,20 +16,32 @@ public static class DependencyInjection
             cfg.LicenseKey = cOptions.MediatRLicenseKey;
         });
 
-        if (cOptions.Configuration is null)
-            services.Configure<ActiveDirectoryOptions>(o => o = cOptions);
-        else
-            services.Configure<ActiveDirectoryOptions>(cOptions.Configuration);
+        if (!cOptions.IsADConfigured)
+            services.Configure<ActiveDirectoryOptions>(_ => { });
 
         return services;
     }
 
     public class ADConfigurationOptions : ActiveDirectoryOptions
     {
-        internal ADConfigurationOptions() { }
+        private readonly IServiceCollection _services;
+
+        internal bool IsADConfigured { get; private set; } = false;
+
+        internal ADConfigurationOptions(IServiceCollection services) => _services = services;
 
         public string? MediatRLicenseKey { get; set; }
 
-        public IConfiguration? Configuration { get; set; }
+        private void EnsureSingleMappingConfiguration(Action action)
+        {
+            if (IsADConfigured)
+                throw new InvalidOperationException("Mapping configuration has already been set.");
+            action();
+            IsADConfigured = true;
+        }
+
+        public void ConfigActiveDirectory(IConfiguration config) => EnsureSingleMappingConfiguration(() => _services.Configure<ActiveDirectoryOptions>(config));
+
+        public void ConfigActiveDirectory(Action<ActiveDirectoryOptions> options) => EnsureSingleMappingConfiguration(() => _services.Configure(options));
     }
 }
\ No newline at end of file
diff --git a/src/DigitalData.ActiveDirectory/DirectorySearchQuery.cs b/src/DigitalData.ActiveDirectory/DirectorySearchQuery.cs
index 618ee6d..3049279 100644
--- a/src/DigitalData.ActiveDirectory/DirectorySearchQuery.cs
+++ b/src/DigitalData.ActiveDirectory/DirectorySearchQuery.cs
@@ -12,14 +12,20 @@ public record DirectorySearchQuery(string? Filter = null, SearchScope Scope = Se
 }
 
 [System.Diagnostics.CodeAnalysis.SuppressMessage("Interoperability", "CA1416:Validate platform compatibility", Justification = "<Pending>")]
-public class DirectorySearchQueryHandler(IOptions<ActiveDirectoryOptions> options) : IRequestHandler<DirectorySearchQuery, IEnumerable<ResultPropertyCollection>>
+public class DirectorySearchQueryHandler : IRequestHandler<DirectorySearchQuery, IEnumerable<ResultPropertyCollection>>
 {
-    
+    private readonly IOptions<ActiveDirectoryOptions> _options;
+
+    public DirectorySearchQueryHandler(IOptions<ActiveDirectoryOptions> options)
+    {
+        _options = options;
+    }
+
     public DirectoryEntry DirectoryEntry => new ()
     {
-        Path = options.Value.Path,
-        Username = options.Value.Username,
-        Password = options.Value.Password
+        Path = _options.Value.Path,
+        Username = _options.Value.Username,
+        Password = _options.Value.Password
     };
 
     public Task<IEnumerable<ResultPropertyCollection>> Handle(DirectorySearchQuery request, CancellationToken cancellationToken = default)