--- a/toolkit/crashreporter/nsExceptionHandler.cpp
+++ b/toolkit/crashreporter/nsExceptionHandler.cpp
@@ -712,20 +712,23 @@ nsresult SetExceptionHandler(nsILocalFil
                                     pref_cpu_types,
                                     &attr_ocount) != 0 ||
       attr_ocount != attr_count) {
     posix_spawnattr_destroy(&spawnattr);
     return NS_ERROR_FAILURE;
   }
 #endif
 
-#ifdef XP_WIN
+#ifdef XP_WIN32
+  MINIDUMP_TYPE minidump_type = MiniDumpNormal;
+
+#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN
   // Try to determine what version of dbghelp.dll we're using.
   // MinidumpWithFullMemoryInfo is only available in 6.1.x or newer.
-  MINIDUMP_TYPE minidump_type = MiniDumpNormal;
+
   DWORD version_size = GetFileVersionInfoSizeW(L"dbghelp.dll", NULL);
   if (version_size > 0) {
     std::vector<BYTE> buffer(version_size);
     if (GetFileVersionInfoW(L"dbghelp.dll",
                             0,
                             version_size,
                             &buffer[0])) {
       UINT len;
@@ -735,17 +738,18 @@ nsresult SetExceptionHandler(nsILocalFil
            minor = LOWORD(file_info->dwFileVersionMS),
            revision = HIWORD(file_info->dwFileVersionLS);
       if (major > 6 || (major == 6 && minor > 1) ||
           (major == 6 && minor == 1 && revision >= 7600)) {
         minidump_type = MiniDumpWithFullMemoryInfo;
       }
     }
   }
-#endif
+#endif // MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN
+#endif // XP_WIN32
 
   // now set the exception handler
   gExceptionHandler = new google_breakpad::
     ExceptionHandler(tempPath.get(),
 #ifdef XP_WIN
                      FPEFilter,
 #else
                      nsnull,