The debugger "Auto" registry value should be a string.

win32/except.c

@@ -200,7 +200,13 @@ DWORD WINAPI UnhandledExceptionFilter(PEXCEPTION_POINTERS epointers)
        count = sizeof(bAuto);
        if (RegQueryValueExA(hDbgConf, "Auto", 0, &type, (char*)&bAuto, &count))
 	  bAuto = TRUE;
-       
+       else if (type == REG_SZ)
+       {
+           char autostr[10];
+           count = sizeof(autostr);
+           if (!RegQueryValueExA(hDbgConf, "Auto", 0, &type, autostr, &count))
+               bAuto = atoi(autostr);
+       }
        RegCloseKey(hDbgConf);
     } else {
        /* format[0] = 0; */

winedefault.reg

@@ -87,7 +87,7 @@
 # command line to start a debugger when an exception occurs
 "Debugger"="debugger/winedbg %ld %ld"
 # to 0 if a message box has to be presented before running the debugger
-"Auto"=dword:00000001
+"Auto"="1"
 
 #
 # This identifies the files for available code pages