diff --git a/spi00in.cpp b/spi00in.cpp
index 6874ef8..b38e41c 100644
--- a/spi00in.cpp
+++ b/spi00in.cpp
@@ -190,7 +190,7 @@ int __stdcall IsSupportedW(LPCWSTR filename, DWORD_PTR dw)
     return 0;
 }
 
-int __stdcall GetPictureInfo(LPCSTR buf, LONG_PTR len, unsigned int flag, PictureInfo* lpInfo)
+int __stdcall GetPictureInfo(LPCSTR buf, LONG_PTR len, UINT flag, PictureInfo* lpInfo)
 {
     std::wstring unicode;
     if ((flag & 7) == 0)
@@ -200,7 +200,7 @@ int __stdcall GetPictureInfo(LPCSTR buf, LONG_PTR len, unsigned int flag, Pictur
     return GetPictureInfoW(unicode.c_str(), len, flag, lpInfo);
 }
 
-int __stdcall GetPictureInfoW(LPCWSTR buf, LONG_PTR len, unsigned int flag, PictureInfo* lpInfo)
+int __stdcall GetPictureInfoW(LPCWSTR buf, LONG_PTR len, UINT flag, PictureInfo* lpInfo)
 {
     if (!lpInfo)
     {
@@ -224,7 +224,7 @@ int __stdcall GetPictureInfoW(LPCWSTR buf, LONG_PTR len, unsigned int flag, Pict
     return GetPictureInfoEx(NULL, reinterpret_cast<LPBYTE>(const_cast<LPWSTR>(buf)), len, lpInfo);
 }
 
-int __stdcall GetPicture(LPCSTR buf, LONG_PTR len, unsigned int flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData)
+int __stdcall GetPicture(LPCSTR buf, LONG_PTR len, UINT flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData)
 {
     std::wstring unicode;
     if ((flag & 7) == 0)
@@ -234,7 +234,7 @@ int __stdcall GetPicture(LPCSTR buf, LONG_PTR len, unsigned int flag, HANDLE* pH
     return GetPictureW(unicode.c_str(), len, flag, pHBInfo, pHBm, lpPrgressCallback, lData);
 }
 
-int __stdcall GetPictureW(LPCWSTR buf, LONG_PTR len, unsigned int flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData)
+int __stdcall GetPictureW(LPCWSTR buf, LONG_PTR len, UINT flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData)
 {
     if (!pHBInfo || !pHBm)
     {
@@ -258,12 +258,12 @@ int __stdcall GetPictureW(LPCWSTR buf, LONG_PTR len, unsigned int flag, HANDLE*
     return GetPictureEx(NULL, reinterpret_cast<LPBYTE>(const_cast<LPWSTR>(buf)), len, pHBInfo, pHBm, lpPrgressCallback, lData);
 }
 
-int __stdcall GetPreview(LPCSTR buf, LONG_PTR len, unsigned int flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData)
+int __stdcall GetPreview(LPCSTR buf, LONG_PTR len, UINT flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData)
 {
     return GetPicture(buf, len, flag, pHBInfo, pHBm, lpPrgressCallback, lData);
 }
 
-int __stdcall GetPreviewW(LPCWSTR buf, LONG_PTR len, unsigned int flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData)
+int __stdcall GetPreviewW(LPCWSTR buf, LONG_PTR len, UINT flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData)
 {
     return GetPictureW(buf, len, flag, pHBInfo, pHBm, lpPrgressCallback, lData);
 }
\ No newline at end of file
diff --git a/spi00in.h b/spi00in.h
index c9fdbb2..ace296c 100644
--- a/spi00in.h
+++ b/spi00in.h
@@ -26,6 +26,9 @@ struct PictureInfo {
     WORD x_density;
     WORD y_density;
     short colorDepth;
+#ifdef _WIN64
+    BYTE alignment[2];
+#endif
     HLOCAL hInfo;
 };
 #pragma pack(pop)
@@ -35,9 +38,9 @@ EXTERN_C int __stdcall GetPluginInfo(int infono, LPSTR buf, int buflen);
 EXTERN_C int __stdcall GetPluginInfoW(int infono, LPWSTR buf, int buflen);
 EXTERN_C int __stdcall IsSupported(LPCSTR filename, DWORD_PTR dw);
 EXTERN_C int __stdcall IsSupportedW(LPCWSTR filename, DWORD_PTR dw);
-EXTERN_C int __stdcall GetPictureInfo(LPCSTR buf, LONG_PTR len, unsigned int flag, PictureInfo* lpInfo);
-EXTERN_C int __stdcall GetPictureInfoW(LPCWSTR buf, LONG_PTR len, unsigned int flag, PictureInfo* lpInfo);
-EXTERN_C int __stdcall GetPicture(LPCSTR buf, LONG_PTR len, unsigned int flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData);
-EXTERN_C int __stdcall GetPictureW(LPCWSTR buf, LONG_PTR len, unsigned int flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData);
-EXTERN_C int __stdcall GetPreview(LPCSTR buf, LONG_PTR len, unsigned int flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData);
-EXTERN_C int __stdcall GetPreviewW(LPCWSTR buf, LONG_PTR len, unsigned int flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData);
+EXTERN_C int __stdcall GetPictureInfo(LPCSTR buf, LONG_PTR len, UINT flag, PictureInfo* lpInfo);
+EXTERN_C int __stdcall GetPictureInfoW(LPCWSTR buf, LONG_PTR len, UINT flag, PictureInfo* lpInfo);
+EXTERN_C int __stdcall GetPicture(LPCSTR buf, LONG_PTR len, UINT flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData);
+EXTERN_C int __stdcall GetPictureW(LPCWSTR buf, LONG_PTR len, UINT flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData);
+EXTERN_C int __stdcall GetPreview(LPCSTR buf, LONG_PTR len, UINT flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData);
+EXTERN_C int __stdcall GetPreviewW(LPCWSTR buf, LONG_PTR len, UINT flag, HANDLE* pHBInfo, HANDLE* pHBm, ProgressCallback lpPrgressCallback, LONG_PTR lData);