diff --git a/gfx/video_crt_win.c b/gfx/video_crt_win.c
new file mode 100644
index 0000000000..6aff3170d2
--- /dev/null
+++ b/gfx/video_crt_win.c
@@ -0,0 +1,139 @@
+/* CRT SwitchRes Core 
+ * Copyright (C) 2018 Ben Templeman.
+ *
+ * RetroArch - A frontend for libretro.
+ *  Copyright (C) 2010-2014 - Hans-Kristian Arntzen
+ *  Copyright (C) 2011-2017 - Daniel De Matteis
+ *
+ *  RetroArch is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with RetroArch.
+ *  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <stddef.h>
+#include <string.h>
+#include <windows.h>
+#include <stdlib.h>
+
+#include "video_crt_switch.h"
+
+
+void switch_res(int width, int height, int f_restore)
+{  /* windows function to swith resolutions */
+	
+	DEVMODE curDevmode;
+	DEVMODE devmode;
+	DWORD flags = 0;
+	int     iModeNum;
+	int depth = 0;
+	int freq;
+	if (f_restore == 0)
+	{
+		freq = ra_set_core_hz;
+	} 
+	else 
+	{
+		freq = 0;
+	}
+	
+	EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &curDevmode);
+	
+	if (width == curDevmode.dmPelsWidth)
+	{
+		width  = 0;							/* used to stop superresolution bug */
+	}
+
+	if (width == 0) 
+	{
+		width = curDevmode.dmPelsWidth;
+	}
+	if (height == 0) 
+	{
+		height = curDevmode.dmPelsHeight;
+	}
+	if (depth == 0) 
+	{
+		depth = curDevmode.dmBitsPerPel;
+	}
+	if (freq == 0) 
+	{
+		freq = curDevmode.dmDisplayFrequency;
+	}
+
+	for (iModeNum = 0; ; iModeNum++) 
+	{
+		if (EnumDisplaySettings(NULL, iModeNum, &devmode)) 
+		{
+		
+			if (devmode.dmPelsWidth != width) 
+			{
+				continue;
+			}
+
+			if (devmode.dmPelsHeight != height) 
+			{
+				continue;
+			}
+
+	
+			if (devmode.dmBitsPerPel != depth) 
+			{
+				continue;
+			}
+
+	
+			if (devmode.dmDisplayFrequency != freq) 
+			{
+				continue;
+			}
+
+
+			devmode.dmFields |= DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL | DM_DISPLAYFREQUENCY;
+			LONG res = ChangeDisplaySettings(&devmode, CDS_TEST);
+
+			switch (res) 
+			{
+			case DISP_CHANGE_SUCCESSFUL:
+				res = ChangeDisplaySettings(&devmode, flags);
+				switch (res) 
+				{
+				case DISP_CHANGE_SUCCESSFUL:
+					return;
+
+				case DISP_CHANGE_NOTUPDATED:
+			
+					return;
+
+				default:
+			
+					break;
+				}
+				break;
+
+			case DISP_CHANGE_RESTART:
+		
+				break;
+
+			default:
+			
+				break;
+			}
+		}
+		else 
+		{
+			break;
+		}
+	}
+
+}
+
+void video_restore()
+{
+	switch_res(orig_width, orig_height,1);
+}
diff --git a/gfx/video_crt_win.h b/gfx/video_crt_win.h
new file mode 100644
index 0000000000..83a27d47d2
--- /dev/null
+++ b/gfx/video_crt_win.h
@@ -0,0 +1,21 @@
+/* CRT SwitchRes Core 
+ * Copyright (C) 2018 Ben Templeman.
+ *
+ * RetroArch - A frontend for libretro.
+ *  Copyright (C) 2010-2014 - Hans-Kristian Arntzen
+ *  Copyright (C) 2011-2017 - Daniel De Matteis
+ *
+ *  RetroArch is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with RetroArch.
+ *  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+void switch_res(int width, int height, int f_restore);
+void video_restore();
\ No newline at end of file