diff --git a/ExtIO_sddc/ExtIO_sddc.cpp b/ExtIO_sddc/ExtIO_sddc.cpp
index 04d7d48a..12aba816 100644
--- a/ExtIO_sddc/ExtIO_sddc.cpp
+++ b/ExtIO_sddc/ExtIO_sddc.cpp
@@ -103,10 +103,10 @@ static bool GetConsoleInput(char* buf, int maxlen)
 {
 	DWORD nevents = 0;
 	INPUT_RECORD irInBuf[128];
-	KEY_EVENT_RECORD key;
-	int i;
+	KEY_EVENT_RECORD key = 0;
 	bool rc = false;
 	int counter = 0;
+
 	if (Hconsole == nullptr) return rc;
 	HANDLE hInput = GetStdHandle(STD_INPUT_HANDLE);
 	if (GetNumberOfConsoleInputEvents(hInput, &nevents))
@@ -118,7 +118,7 @@ static bool GetConsoleInput(char* buf, int maxlen)
 				dbgprintf("ReadConsoleInput error\n");
 				return rc;
 			}
-			for (i = 0; i < nevents; i++)
+			for (DWORD i = 0; i < nevents; i++)
 			{
 				if (irInBuf[i].EventType == KEY_EVENT)
 				{
@@ -211,7 +211,7 @@ bool __declspec(dllexport) __stdcall InitHW(char *name, char *model, int& type)
 		}
 		devicelist.numdev = idx;
 		if (idx > 1){	
-			selected =  DialogBoxParam(hInst, MAKEINTRESOURCE(IDD_SELECTDEVICE), NULL, DlgSelectDevice, (LPARAM) &devicelist);
+			selected = (int)DialogBoxParam(hInst, MAKEINTRESOURCE(IDD_SELECTDEVICE), NULL, DlgSelectDevice, (LPARAM) &devicelist);
 		}
 		DbgPrintf("selected %d \n",selected);
 		idx = selected;
@@ -469,7 +469,7 @@ double EXTIO_API SetHWLOdbl(double LOfreq)
 	const double wishedLO = LOfreq;
 	double ret = 0;
 	rf_mode rfmode = RadioHandler.GetmodeRF();
-	rf_mode newmode = RadioHandler.PrepareLo(LOfreq);
+	rf_mode newmode = RadioHandler.PrepareLo((uint64_t)LOfreq);
 
 	if (newmode == NOMODE) // this freq is not supported
 		return -1;
@@ -502,7 +502,7 @@ double EXTIO_API SetHWLOdbl(double LOfreq)
 	}
 
 	double internal_LOfreq = LOfreq / FreqCorrectionFactor();
-	internal_LOfreq = RadioHandler.TuneLO(internal_LOfreq);
+	internal_LOfreq = RadioHandler.TuneLO((uint64_t)internal_LOfreq);
 	gfLOfreq = LOfreq = internal_LOfreq * FreqCorrectionFactor();
 	if (wishedLO != LOfreq)
 	{
@@ -869,7 +869,7 @@ int SetOverclock(uint32_t adcfreq)
 
 	RadioHandler.Start(ExtIoGetActualSrateIdx());
 	double internal_LOfreq = gfLOfreq / FreqCorrectionFactor();
-	RadioHandler.TuneLO(internal_LOfreq);
+	RadioHandler.TuneLO((uint64_t)internal_LOfreq);
 	return 0;
 }
 
@@ -1034,11 +1034,11 @@ void SaveSettings()
 		char idxvalue[30];
 		sprintf(idxvalue, "%03d_Value", idx);
 		// write the value
-		RegSetValueEx(handle, idxvalue, 0, REG_SZ, (const BYTE*)value, strlen(value));
+		RegSetValueEx(handle, idxvalue, 0, REG_SZ, (const BYTE*)value, (DWORD)strlen(value));
 
 		sprintf(idxvalue, "%03d_Description", idx);
 		// write the value
-		RegSetValueEx(handle, idxvalue, 0, REG_SZ, (const BYTE*)desc, strlen(desc));
+		RegSetValueEx(handle, idxvalue, 0, REG_SZ, (const BYTE*)desc, (DWORD)strlen(desc));
 		// fetch next
 		idx++;
 		ret = ExtIoGetSetting(idx, desc, value);
diff --git a/ExtIO_sddc/tdialog.cpp b/ExtIO_sddc/tdialog.cpp
index 83752bdf..24066213 100644
--- a/ExtIO_sddc/tdialog.cpp
+++ b/ExtIO_sddc/tdialog.cpp
@@ -175,7 +175,7 @@ INT_PTR CALLBACK DlgMainFn(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 	{
 		HDC hDc = (HDC)wParam;
 		SetBkMode(hDc, TRANSPARENT);
-		return (LONG)g_hbrBackground;
+		return g_hbrBackground;
 	}
 
 	case WM_USER + 1:
@@ -492,7 +492,7 @@ INT_PTR CALLBACK DlgSelectDevice(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPa
 	{
 		HDC hDc = (HDC)wParam;
 		SetBkMode(hDc, TRANSPARENT);
-		return (LONG)g_hbrBackground;
+		return g_hbrBackground;
 	}
 	case WM_COMMAND:
 		switch (LOWORD(wParam))