diff --git a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleShell.cs b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleShell.cs
index 6eb9059df18..51db1e5f36c 100644
--- a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleShell.cs
+++ b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleShell.cs
@@ -3,6 +3,7 @@
 
 using System.Management.Automation;
 using System.Management.Automation.Runspaces;
+using System.Runtime.CompilerServices;
 
 namespace Microsoft.PowerShell
 {
@@ -21,11 +22,29 @@ class ConsoleShell
         /// <returns>An integer value which should be used as exit code for the process.</returns>
         public static int Start(string bannerText, string helpText, string[] args)
         {
+            return Start(InitialSessionState.CreateDefault2(), bannerText, helpText, args);
+        }
+
+        /// <summary>Entry point in to ConsoleShell. Used to create a custom Powershell console application</summary>
+        /// <param name="initialSessionState">InitialSessionState to be used by the ConsoleHost.</param>
+        /// <param name="bannerText">Banner text to be displayed by ConsoleHost.</param>
+        /// <param name="helpText">Help text for the shell.</param>
+        /// <param name="args">Commandline parameters specified by user.</param>
+        /// <returns>An integer value which should be used as exit code for the process.</returns>
+        public static int Start(InitialSessionState initialSessionState, string bannerText, string helpText, string[] args)
+        {
+            if (initialSessionState == null)
+            {
+                throw PSTraceSource.NewArgumentNullException(nameof(initialSessionState));
+            }
+
             if (args == null)
             {
-                throw PSTraceSource.NewArgumentNullException("args");
+                throw PSTraceSource.NewArgumentNullException(nameof(args));
             }
 
+            ConsoleHost.DefaultInitialSessionState = initialSessionState;
+
             return ConsoleHost.Start(bannerText, helpText, args);
         }
     }
diff --git a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ManagedEntrance.cs b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ManagedEntrance.cs
index 4094da9931d..b400f7ed0f4 100644
--- a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ManagedEntrance.cs
+++ b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ManagedEntrance.cs
@@ -63,8 +63,6 @@ public static int Start(string consoleFilePath, [MarshalAs(UnmanagedType.LPArray
                 System.Diagnostics.Debugger.Break();
             }
 #endif
-            ConsoleHost.DefaultInitialSessionState = InitialSessionState.CreateDefault2();
-
             int exitCode = 0;
             try
             {