diff --git a/include/WinStd/Common.h b/include/WinStd/Common.h
index 9a377960..68cbd512 100644
--- a/include/WinStd/Common.h
+++ b/include/WinStd/Common.h
@@ -252,8 +252,8 @@ inline SIZE_T SIZETAdd(SIZE_T a, SIZE_T b)
 ///
 /// \returns Number of characters in result.
 ///
-[[deprecated("Behavior of this function changed from append to assign. Please, review call usage.")]]
 template<class _Traits, class _Ax>
+[[deprecated("Behavior of this function changed from append to assign. Please, review call usage.")]]
 static int vsprintf(_Inout_ std::basic_string<char, _Traits, _Ax> &str, _In_z_ _Printf_format_string_ const char *format, _In_ va_list arg)
 {
     char buf[WINSTD_STACK_BUFFER_BYTES/sizeof(char)];
@@ -291,8 +291,8 @@ static int vsprintf(_Inout_ std::basic_string<char, _Traits, _Ax> &str, _In_z_ _
 ///
 /// \returns Number of characters in result.
 ///
-[[deprecated("Behavior of this function changed from append to assign. Please, review call usage.")]]
 template<class _Traits, class _Ax>
+[[deprecated("Behavior of this function changed from append to assign. Please, review call usage.")]]
 static int vsprintf(_Inout_ std::basic_string<wchar_t, _Traits, _Ax> &str, _In_z_ _Printf_format_string_ const wchar_t *format, _In_ va_list arg)
 {
     wchar_t buf[WINSTD_STACK_BUFFER_BYTES/sizeof(wchar_t)];
@@ -1312,6 +1312,7 @@ namespace winstd
                         va_list arg;
                         va_start(arg, wLanguage);
                         std::wstring sMessage;
+#pragma warning(suppress: 4996) // Checked to comply.
                         vsprintf(sMessage, szFormat, arg);
                         va_end(arg);
                         WideCharToMultiByte(CP_UTF8, 0, sMessage, sResult, NULL, NULL);
@@ -1498,6 +1499,7 @@ namespace winstd
         {
             va_list arg;
             va_start(arg, format);
+#pragma warning(suppress: 4996) // Checked to comply.
             vsprintf(*this, format, arg);
             va_end(arg);
         }
diff --git a/include/WinStd/Win.h b/include/WinStd/Win.h
index 55fff26a..95ce8283 100644
--- a/include/WinStd/Win.h
+++ b/include/WinStd/Win.h
@@ -739,7 +739,8 @@ static _Success_(return != 0) int LoadStringW(_In_opt_ HINSTANCE hInstance, _In_
 static VOID OutputDebugStrV(_In_z_ LPCSTR lpOutputString, _In_ va_list arg) noexcept
 {
     std::string str;
-    try { vsprintf(str, lpOutputString, arg); } catch (...) { return; }
+#pragma warning(suppress: 4996) // Checked to comply.
+	try { vsprintf(str, lpOutputString, arg); } catch (...) { return; }
     OutputDebugStringA(str.c_str());
 }
 
@@ -751,7 +752,8 @@ static VOID OutputDebugStrV(_In_z_ LPCSTR lpOutputString, _In_ va_list arg) noex
 static VOID OutputDebugStrV(_In_z_ LPCWSTR lpOutputString, _In_ va_list arg) noexcept
 {
     std::wstring str;
-    try { vsprintf(str, lpOutputString, arg); } catch (...) { return; }
+#pragma warning(suppress: 4996) // Checked to comply.
+	try { vsprintf(str, lpOutputString, arg); } catch (...) { return; }
     OutputDebugStringW(str.c_str());
 }