退出时的返回码

oncheck 实用程序退出时返回以下代码。
GLS failures:-1
          Invalid srial/key:2
          Onconfig access error:2
          Invalid onconfig settings:2
          Invalid arguments to oncheck:2
          Error connecting database server:1
          Warning reported by oncheck:1
          error detected by oncheck:2
          no errors detected by oncheck:0
仅 Windows™ :
Not properly installed:1
        Authentication error:2