diff --git a/Externals/WiiUse/Win32/wiiuse.dll b/Externals/WiiUse/Win32/wiiuse.dll
index 512b53b83f4..43c39f115f1 100644
Binary files a/Externals/WiiUse/Win32/wiiuse.dll and b/Externals/WiiUse/Win32/wiiuse.dll differ
diff --git a/Externals/WiiUse/Win32/wiiuse.lib b/Externals/WiiUse/Win32/wiiuse.lib
index 75c45ef4a75..ba9196a109f 100644
Binary files a/Externals/WiiUse/Win32/wiiuse.lib and b/Externals/WiiUse/Win32/wiiuse.lib differ
diff --git a/Externals/WiiUse/X64/wiiuse.dll b/Externals/WiiUse/X64/wiiuse.dll
index 46f146e3825..f8e28edd228 100644
Binary files a/Externals/WiiUse/X64/wiiuse.dll and b/Externals/WiiUse/X64/wiiuse.dll differ
diff --git a/Externals/WiiUse/X64/wiiuse.lib b/Externals/WiiUse/X64/wiiuse.lib
index 196bd6b19f8..40e8c29877b 100644
Binary files a/Externals/WiiUse/X64/wiiuse.lib and b/Externals/WiiUse/X64/wiiuse.lib differ
diff --git a/Externals/WiiUseSrc/Src/io_win.c b/Externals/WiiUseSrc/Src/io_win.c
index 0d345c7ab39..f64f256fb2f 100644
--- a/Externals/WiiUseSrc/Src/io_win.c
+++ b/Externals/WiiUseSrc/Src/io_win.c
@@ -205,8 +205,8 @@ int wiiuse_io_read(struct wiimote_t* wm) {
 
 	// This needs to be done even if ReadFile fails, essential during init
 	// Move the data over one, so we can add back in 0xa2
-	memcpy(wm->event_buf + 1, wm->event_buf, sizeof(wm->event_buf) - 1);
-	wm->event_buf[0] = 0xa2; // Put back in the crazy Data that Windows strips out
+	memmove(wm->event_buf + 1, wm->event_buf, sizeof(wm->event_buf) - 1);
+	wm->event_buf[0] = 0xa2;
 
 	ResetEvent(wm->hid_overlap.hEvent);
 	return 1;
@@ -224,7 +224,7 @@ int wiiuse_io_write(struct wiimote_t* wm, byte* buf, int len) {
 		case WIIUSE_STACK_UNKNOWN:
 		{
 			/* try to auto-detect the stack type */
-			if (i = WriteFile(wm->dev_handle, buf + 1, 22, &bytes, &wm->hid_overlap)) {
+			if (i = WriteFile(wm->dev_handle, buf + 1, len - 1, &bytes, &wm->hid_overlap)) {
 				/* bluesoleil will always return 1 here, even if it's not connected */
 				wm->stack = WIIUSE_STACK_BLUESOLEIL;
 				return i;
@@ -243,7 +243,7 @@ int wiiuse_io_write(struct wiimote_t* wm, byte* buf, int len) {
 			return HidD_SetOutputReport(wm->dev_handle, buf + 1, len - 1);
 
 		case WIIUSE_STACK_BLUESOLEIL:
-			return WriteFile(wm->dev_handle, buf + 1, 22, &bytes, &wm->hid_overlap);
+			return WriteFile(wm->dev_handle, buf + 1, len - 1, &bytes, &wm->hid_overlap);
 	}
 
 	return 0;
diff --git a/Externals/WiiUseSrc/wiiuse.vcproj b/Externals/WiiUseSrc/wiiuse.vcproj
index 1bfa3a0edee..369a261e302 100644
--- a/Externals/WiiUseSrc/wiiuse.vcproj
+++ b/Externals/WiiUseSrc/wiiuse.vcproj
@@ -51,7 +51,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				Optimization="0"
+				Optimization="2"
 				InlineFunctionExpansion="2"
 				AdditionalIncludeDirectories="C:\WinDDK\7600.16385.0\inc\api;C:\WinDDK\7600.16385.0\inc\crt"
 				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;WIIUSE_EXPORTS"
@@ -147,7 +147,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				Optimization="0"
+				Optimization="2"
 				InlineFunctionExpansion="2"
 				AdditionalIncludeDirectories="C:\WinDDK\7600.16385.0\inc\api;C:\WinDDK\7600.16385.0\inc\crt"
 				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;WIIUSE_EXPORTS;_WIN64"