diff --git a/Windows API/IsProcessRunning.cpp b/Windows API/IsProcessRunning.cpp
new file mode 100644
index 0000000..4850c82
--- /dev/null
+++ b/Windows API/IsProcessRunning.cpp	
@@ -0,0 +1,101 @@
+BOOL IsProcessRunningA(PCHAR ProcessNameWithExtension, BOOL IsCaseSensitive)
+{
+	HANDLE hProcess = NULL;
+
+	DWORD ProcessIdArray[1024] = { 0 };
+	DWORD ProcessIdArraySize = 0;
+	DWORD NumberOfBytesReturned = 0;
+
+	if (!EnumProcesses(ProcessIdArray, sizeof(ProcessIdArray), &NumberOfBytesReturned))
+		return FALSE;
+
+	ProcessIdArraySize = NumberOfBytesReturned / sizeof(DWORD);
+
+	for (DWORD dwIndex = 0; dwIndex < ProcessIdArraySize; dwIndex++)
+	{
+		HMODULE Module = NULL;
+		CHAR ProcessStringName[MAX_PATH] = { 0 };
+
+		if (ProcessIdArray[dwIndex] == 0)
+			continue;
+
+		hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, ProcessIdArray[dwIndex]);
+		if (hProcess == NULL)
+			continue;
+
+		if (!EnumProcessModules(hProcess, &Module, sizeof(Module), &NumberOfBytesReturned))
+			continue;
+
+		if (GetModuleBaseNameA(hProcess, Module, ProcessStringName, sizeof(ProcessStringName) / sizeof(WCHAR)) == 0)
+			continue;
+
+		if (hProcess)
+			CloseHandle(hProcess);
+
+		if (!IsCaseSensitive)
+		{
+			PCHAR String1 = CaplockStringA(ProcessNameWithExtension);
+			PCHAR String2 = CaplockStringA(ProcessStringName);
+
+			if (StringCompareA(String1, String2) == 0)
+				return TRUE;
+		}
+		else {
+			if (StringCompareA(ProcessStringName, ProcessNameWithExtension) == 0)
+				return TRUE;
+		}
+	}
+
+	return FALSE;
+}
+
+BOOL IsProcessRunningW(PWCHAR ProcessNameWithExtension, BOOL IsCaseSensitive)
+{
+	HANDLE hProcess = NULL;
+
+	DWORD ProcessIdArray[1024] = { 0 };
+	DWORD ProcessIdArraySize = 0;
+	DWORD NumberOfBytesReturned = 0;
+
+	if (!EnumProcesses(ProcessIdArray, sizeof(ProcessIdArray), &NumberOfBytesReturned))
+		return FALSE;
+
+	ProcessIdArraySize = NumberOfBytesReturned / sizeof(DWORD);
+
+	for (DWORD dwIndex = 0; dwIndex < ProcessIdArraySize; dwIndex++)
+	{
+		HMODULE Module = NULL;
+		WCHAR ProcessStringName[MAX_PATH] = { 0 };
+
+		if (ProcessIdArray[dwIndex] == 0)
+			continue;
+
+		hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, ProcessIdArray[dwIndex]);
+		if (hProcess == NULL)
+			continue;
+
+		if (!EnumProcessModules(hProcess, &Module, sizeof(Module), &NumberOfBytesReturned))
+			continue;
+
+		if (GetModuleBaseNameW(hProcess, Module, ProcessStringName, sizeof(ProcessStringName) / sizeof(WCHAR)) == 0)
+			continue;
+
+		if (hProcess)
+			CloseHandle(hProcess);
+
+		if (!IsCaseSensitive)
+		{
+			PWCHAR String1 = CaplockStringW(ProcessNameWithExtension);
+			PWCHAR String2 = CaplockStringW(ProcessStringName);
+
+			if (StringCompareW(String1, String2) == 0)
+				return TRUE;
+		}
+		else {
+			if (StringCompareW(ProcessStringName, ProcessNameWithExtension) == 0)
+				return TRUE;
+		}
+	}
+
+	return FALSE;
+}