diff --git a/ext/dmddevice/Demo/dmddevice_dll/dmddevice.cpp b/ext/dmddevice/Demo/dmddevice_dll/dmddevice.cpp
index 7ac0e9ce7..b414a8714 100644
--- a/ext/dmddevice/Demo/dmddevice_dll/dmddevice.cpp
+++ b/ext/dmddevice/Demo/dmddevice_dll/dmddevice.cpp
@@ -80,7 +80,7 @@ DMDDEV void Set_16_Colors_Palette(rgb24 *color)
 DMDDEV void Render_4_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer)
 {
 	if (isOpen) {
-		for (int i = 0; i < width*height; i++){
+		for (int i = 0; i < (int)width*height; i++){
 			switch (currbuffer[i]) {
 			case 0:
 				arr[i] = colors[0];
@@ -111,7 +111,7 @@ DMDDEV void Render_4_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer)
 DMDDEV void Render_16_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer) 
 {
 	if (isOpen) {
-		for (int i = 0; i < width*height; i++)
+		for (int i = 0; i < (int)width*height; i++)
 			arr[i] = colors[currbuffer[i]];
 		HBITMAP map = CreateBitmap(width, height, 1, 32, (void*)arr);
 		HDC src = CreateCompatibleDC(hdc);
@@ -202,7 +202,7 @@ DMDDEV void Render_PM_Alphanumeric_Frame(layout_t layout, const UINT16 *const se
 DMDDEV void Render_RGB24(UINT16 width, UINT16 height, rgb24 *currbuffer)
 {
 	if (isOpen) {
-		for (int i = 0; i < width*height; i++){
+		for (int i = 0; i < (int)width*height; i++){
 			arr[i] = ((int)currbuffer[i].red << 16) | ((int)currbuffer[i].green << 8) | ((int)currbuffer[i].blue /*<< 0*/);
 		}
 		HBITMAP map = CreateBitmap(width, height, 1, 32, (void*)arr);
diff --git a/ext/dmddevice/pinDMDv1/dmddevice_dll/dmddevice.cpp b/ext/dmddevice/pinDMDv1/dmddevice_dll/dmddevice.cpp
index 0eecdb989..a9abfa121 100644
--- a/ext/dmddevice/pinDMDv1/dmddevice_dll/dmddevice.cpp
+++ b/ext/dmddevice/pinDMDv1/dmddevice_dll/dmddevice.cpp
@@ -25,7 +25,7 @@ bool slowUSB = false;
 void Send_Clear_Screen()
 {
 	memset(OutputPacketBuffer,0x00, 2052);
-	const UINT8 tmp[4] = {
+	static const UINT8 tmp[4] = {
 		0x81, 0xC3, 0xE7, 0x00 //header
 		}; 
 	memcpy(OutputPacketBuffer, tmp, sizeof(tmp));
@@ -120,10 +120,10 @@ DMDDEV void PM_GameSettings(const char* GameName, UINT64 HardwareGeneration, con
 
 DMDDEV void Render_4_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer) 
 {
-	if (!memcmp(oldbuffer, currbuffer, width*height)) //check if same frame again
+	if (!memcmp(oldbuffer, currbuffer, (size_t)width*height)) //check if same frame again
 		return;
 
-	memcpy(oldbuffer, currbuffer, width*height);
+	memcpy(oldbuffer, currbuffer, (size_t)width*height);
 
 	if (isOpen) {
 		int byteIdx=4;
@@ -162,7 +162,7 @@ DMDDEV void Render_4_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer)
 					tempbuffer[o] = (UINT8)(((int)currbuffer[offs] + (int)currbuffer[offs+256] + (int)currbuffer[offs+1] + (int)currbuffer[offs+257])/4);
 				}
 		} else
-			memcpy(tempbuffer,currbuffer,width*height);
+			memcpy(tempbuffer,currbuffer,(size_t)width*height);
 	
 
 		// dmd height
@@ -218,10 +218,10 @@ DMDDEV void Render_4_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer)
 
 DMDDEV void Render_16_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer) 
 {
-	if (!memcmp(oldbuffer, currbuffer, width*height)) //check if same frame again
+	if (!memcmp(oldbuffer, currbuffer, (size_t)width*height)) //check if same frame again
 		return;
 
-	memcpy(oldbuffer, currbuffer, width*height);
+	memcpy(oldbuffer, currbuffer, (size_t)width*height);
 
 	if (isOpen) {
 		int byteIdx=4;
@@ -230,7 +230,7 @@ DMDDEV void Render_16_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer)
 		OutputPacketBuffer[0] = 0x81;	// frame sync bytes
 		OutputPacketBuffer[1] = 0xC3;
 		OutputPacketBuffer[2] = 0xE7;
-		OutputPacketBuffer[3] = 0x0;		// command byte
+		OutputPacketBuffer[3] = 0x0;	// command byte
 
 		// 128x16 = display centered vert
 		// 128x32 = no change
@@ -260,7 +260,7 @@ DMDDEV void Render_16_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer)
 					tempbuffer[o] = (UINT8)(((int)currbuffer[offs] + (int)currbuffer[offs+256] + (int)currbuffer[offs+1] + (int)currbuffer[offs+257])/4);
 				}
 		} else
-			memcpy(tempbuffer,currbuffer,width*height);
+			memcpy(tempbuffer,currbuffer,(size_t)width*height);
 
 
 		// dmd height
diff --git a/ext/dmddevice/pinDMDv2/dmddevice_dll/dmddevice.cpp b/ext/dmddevice/pinDMDv2/dmddevice_dll/dmddevice.cpp
index e8f950960..bbc1ef370 100644
--- a/ext/dmddevice/pinDMDv2/dmddevice_dll/dmddevice.cpp
+++ b/ext/dmddevice/pinDMDv2/dmddevice_dll/dmddevice.cpp
@@ -200,10 +200,10 @@ DMDDEV void PM_GameSettings(const char* GameName, UINT64 HardwareGeneration, con
 
 DMDDEV void Render_4_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer) 
 {
-	if (!memcmp(oldbuffer, currbuffer, width*height)) //check if same frame again
+	if (!memcmp(oldbuffer, currbuffer, (size_t)width*height)) //check if same frame again
 		return;
 
-	memcpy(oldbuffer, currbuffer, width*height);
+	memcpy(oldbuffer, currbuffer, (size_t)width*height);
 
 	if (isOpen) {
 		int byteIdx=4;
@@ -242,7 +242,7 @@ DMDDEV void Render_4_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer)
 					tempbuffer[o] = (UINT8)(((int)currbuffer[offs] + (int)currbuffer[offs+256] + (int)currbuffer[offs+1] + (int)currbuffer[offs+257])/4);
 				}
 		} else
-			memcpy(tempbuffer,currbuffer,width*height);
+			memcpy(tempbuffer,currbuffer,(size_t)width*height);
 
 
 		// dmd height
@@ -295,10 +295,10 @@ DMDDEV void Render_4_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer)
 
 DMDDEV void Render_16_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer) 
 {
-	if (!memcmp(oldbuffer, currbuffer, width*height)) //check if same frame again
+	if (!memcmp(oldbuffer, currbuffer, (size_t)width*height)) //check if same frame again
 		return;
 
-	memcpy(oldbuffer, currbuffer, width*height);
+	memcpy(oldbuffer, currbuffer, (size_t)width*height);
 
 	if (isOpen) {
 		int byteIdx=4;
@@ -337,7 +337,7 @@ DMDDEV void Render_16_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer)
 					tempbuffer[o] = (UINT8)(((int)currbuffer[offs] + (int)currbuffer[offs+256] + (int)currbuffer[offs+1] + (int)currbuffer[offs+257])/4);
 				}
 		} else
-			memcpy(tempbuffer,currbuffer,width*height);
+			memcpy(tempbuffer,currbuffer,(size_t)width*height);
 	
 
 		// dmd height
diff --git a/ext/dmddevice/pinDMDv3/dmddevice_dll/dmddevice.cpp b/ext/dmddevice/pinDMDv3/dmddevice_dll/dmddevice.cpp
index ec2e49338..cb5dd4a4b 100644
--- a/ext/dmddevice/pinDMDv3/dmddevice_dll/dmddevice.cpp
+++ b/ext/dmddevice/pinDMDv3/dmddevice_dll/dmddevice.cpp
@@ -81,10 +81,10 @@ DMDDEV void Set_16_Colors_Palette(rgb24 *color)
 
 DMDDEV void Render_4_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer)
 {
-	if (!memcmp(oldbuffer, currbuffer, width*height)) //check if same frame again
+	if (!memcmp(oldbuffer, currbuffer, (size_t)width*height)) //check if same frame again
 		return;
 
-	memcpy(oldbuffer, currbuffer, width*height);
+	memcpy(oldbuffer, currbuffer, (size_t)width*height);
 
 	if (isOpen) {
 		renderDMDFrame(0x00000000080, (UINT8) width, (UINT8) height, currbuffer, 0x00); 
@@ -93,10 +93,10 @@ DMDDEV void Render_4_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer)
 
 DMDDEV void Render_16_Shades(UINT16 width, UINT16 height, UINT8 *currbuffer) 
 {
-	if (!memcmp(oldbuffer, currbuffer, width*height)) //check if same frame again
+	if (!memcmp(oldbuffer, currbuffer, (size_t)width*height)) //check if same frame again
 		return;
 
-	memcpy(oldbuffer, currbuffer, width*height);
+	memcpy(oldbuffer, currbuffer, (size_t)width*height);
 
 	if (isOpen) {
 		render16ShadeFrame(currbuffer);
@@ -190,10 +190,10 @@ DMDDEV void Render_PM_Alphanumeric_Frame(layout_t layout, const UINT16 *const se
 
 DMDDEV void Render_RGB24(UINT16 width, UINT16 height, rgb24 *currbuffer)
 {
-	if (!memcmp(oldbuffer, currbuffer, width*height)) //check if same frame again
+	if (!memcmp(oldbuffer, currbuffer, (size_t)width*height)) //check if same frame again
 		return;
 
-	memcpy(oldbuffer, currbuffer, width*height);
+	memcpy(oldbuffer, currbuffer, (size_t)width*height);
 
 	if (!isOpen && !useRGB) {
 		tPMoptions Options;