diff --git a/SmartArrayControllerTool/SmartArrayControllerTool.cpp b/SmartArrayControllerTool/SmartArrayControllerTool.cpp
index 29be3a6..ca495b4 100644
--- a/SmartArrayControllerTool/SmartArrayControllerTool.cpp
+++ b/SmartArrayControllerTool/SmartArrayControllerTool.cpp
@@ -123,7 +123,7 @@ int wmain(int argc, wchar_t* argv[])
 
 	ULONG length = 0, returned = 0;
 	SCSI_PASS_THROUGH_WITH_BUFFERS sptwb;
-	
+
 	ZeroMemory(&sptwb, sizeof(SCSI_PASS_THROUGH_WITH_BUFFERS));
 	sptwb.spt.Length = sizeof(SCSI_PASS_THROUGH);
 	sptwb.spt.PathId = 0;
@@ -148,7 +148,7 @@ int wmain(int argc, wchar_t* argv[])
 		handle,
 		IOCTL_SCSI_PASS_THROUGH,
 		&sptwb,
-		sizeof(SCSI_PASS_THROUGH),
+		sizeof(SCSI_PASS_THROUGH) + sptwb.spt.SenseInfoLength,
 		&sptwb,
 		sizeof(SCSI_PASS_THROUGH_WITH_BUFFERS),
 		&returned,
@@ -162,7 +162,21 @@ int wmain(int argc, wchar_t* argv[])
 	}
 	else
 	{
-		std::wcerr << L"Failed to send request, error: 0x" << std::hex << GetLastError() << std::endl;
+		const DWORD error = GetLastError();
+
+		std::wstring errorCode = L"Unknown";
+
+		switch (error)
+		{
+		case ERROR_IO_DEVICE:
+			errorCode = L"ERROR_IO_DEVICE";
+			break;
+		case ERROR_INVALID_PARAMETER:
+			errorCode = L"ERROR_INVALID_PARAMETER";
+			break;
+		}
+
+		std::wcerr << L"Failed to send request, error: " << errorCode << std::endl;
 	}
 
 #ifdef ACU_REPLAY
@@ -247,4 +261,4 @@ int wmain(int argc, wchar_t* argv[])
 #endif
 
 	CloseHandle(handle);
-}
+	}