diff --git a/PepperDashEssentials/ControlSystem.cs b/PepperDashEssentials/ControlSystem.cs
index a8002f7e..e4c521b5 100644
--- a/PepperDashEssentials/ControlSystem.cs
+++ b/PepperDashEssentials/ControlSystem.cs
@@ -131,29 +131,46 @@ namespace PepperDash.Essentials
 
                 if (CrestronEnvironment.DevicePlatform != eDevicePlatform.Server)   // Handles 3-series running Windows CE OS
                 {
-                    Debug.Console(0, Debug.ErrorLogLevel.Notice, "Starting Essentials v{0} on {1} Appliance", Global.AssemblyVersion, Global.ProcessorSeries.ToString());
+                    string userFolder;
+                    string nvramFolder;
+                    bool is4series = false;
+
+                    if (eCrestronSeries.Series4 == (Global.ProcessorSeries & eCrestronSeries.Series4)) // Handle 4-series
+                    {
+                        is4series = true;
+                        // Set path to user/
+                        userFolder = "user";
+                        nvramFolder = "nvram";
+                    }
+                    else
+                    {
+                        userFolder = "User";
+                        nvramFolder = "Nvram";
+                    }
+
+                    Debug.Console(0, Debug.ErrorLogLevel.Notice, "Starting Essentials v{0} on {1} Appliance", Global.AssemblyVersion, is4series ? "4-series" : "3-series");
 
                     // Check if User/ProgramX exists
-                    if (Directory.Exists(Global.ApplicationDirectoryPathPrefix + dirSeparator + "User"
+                    if (Directory.Exists(Global.ApplicationDirectoryPathPrefix + dirSeparator + userFolder
                         + dirSeparator + string.Format("program{0}", InitialParametersClass.ApplicationNumber)))
                     {
-                        Debug.Console(0, @"User/program{0} directory found", InitialParametersClass.ApplicationNumber);
-                        filePathPrefix = directoryPrefix + dirSeparator + "User"
+                        Debug.Console(0, @"{0}/program{1} directory found", userFolder, InitialParametersClass.ApplicationNumber);
+                        filePathPrefix = directoryPrefix + dirSeparator + userFolder
                         + dirSeparator + string.Format("program{0}", InitialParametersClass.ApplicationNumber) + dirSeparator;
                     }
                     // Check if Nvram/Programx exists
-                    else if (Directory.Exists(directoryPrefix + dirSeparator + "Nvram"
+                    else if (Directory.Exists(directoryPrefix + dirSeparator + nvramFolder
                         + dirSeparator + string.Format("program{0}", InitialParametersClass.ApplicationNumber)))
                     {
-                        Debug.Console(0, @"Nvram/program{0} directory found", InitialParametersClass.ApplicationNumber);
-                        filePathPrefix = directoryPrefix + dirSeparator + "Nvram"
+                        Debug.Console(0, @"{0}/program{1} directory found", nvramFolder, InitialParametersClass.ApplicationNumber);
+                        filePathPrefix = directoryPrefix + dirSeparator + nvramFolder
                         + dirSeparator + string.Format("program{0}", InitialParametersClass.ApplicationNumber) + dirSeparator;
                     }
                     // If neither exists, set path to User/ProgramX
                     else
                     {
-                        Debug.Console(0, @"No previous directory found.  Using User/program{0}", InitialParametersClass.ApplicationNumber);
-                        filePathPrefix = directoryPrefix + dirSeparator + "User"
+                        Debug.Console(0, @"No previous directory found.  Using {0}/program{1}", userFolder, InitialParametersClass.ApplicationNumber);
+                        filePathPrefix = directoryPrefix + dirSeparator + userFolder
                         + dirSeparator + string.Format("program{0}", InitialParametersClass.ApplicationNumber) + dirSeparator;
                     }
                 }