Changed: Check return code of WaitForSingleObject and log error

--HG--
branch : develop

code/nel/src/misc/common.cpp

@@ -1012,8 +1012,10 @@ sint launchProgramAndWaitForResult(const std::string &programName, const std::st
 	if (!createProcess(programName, arguments, log, pi)) return -1;
 
 	// Successfully created the process.  Wait for it to finish.
-	WaitForSingleObject(pi.hProcess, INFINITE);
+	DWORD ret = WaitForSingleObject(pi.hProcess, INFINITE);
 
+	if (ret == WAIT_OBJECT_0)
+	{
 		// Get the exit code.
 		DWORD exitCode = 0;
 		BOOL ok = GetExitCodeProcess(pi.hProcess, &exitCode);
@@ -1023,9 +1025,19 @@ sint launchProgramAndWaitForResult(const std::string &programName, const std::st
 		CloseHandle(pi.hThread);
 
 		if (ok) return (sint)exitCode;
+	}
 
 	if (log)
-		nlwarning("LAUNCH: Failed launched '%s' with arg '%s'", programName.c_str(), arguments.c_str());
+	{
+		std::string error = toString((uint)ret);
+
+		if (ret == WAIT_FAILED)
+		{
+			error += "(" + formatErrorMessage(getLastError()) +")";
+		}
+
+		nlwarning("LAUNCH: Failed launched '%s' with arg '%s' and error: %s", programName.c_str(), arguments.c_str(), error.c_str());
+	}
 
 	return -1;
 #else