投注接口 的 TIdHTTPServer要配合其他控件使用，为什么？

投注接口数据模块窗体文件TIdHTTPServer要配合其他控件使用，为什么？

object Main_IdHTTPServer: TIdHTTPServer
Bindings = <>
Intercept = IdServerCompressionIntercept1
IOHandler = IdServerIOHandlerStack1
OnException = Main_IdHTTPServerException
Scheduler = IdSchedulerOfThreadDefault1
OnCommandGet = Main_IdHTTPServerCommandGet
Left = 136
Top = 40
end

object dmMain: TdmMain
  OldCreateOrder = False
  Left = 644
  Top = 186
  Height = 471
  Width = 612
  object MyConnection: TMyConnection
    Options.UseUnicode = True
    OnConnectionLost = MyConnectionConnectionLost
    LoginPrompt = False
    Left = 40
    Top = 40
  end
  object MyQuery_Temp: TMyQuery
    Connection = MyConnection
    Left = 336
    Top = 88
  end
  object Main_IdHTTPServer: TIdHTTPServer
    Bindings = <>
    Intercept = IdServerCompressionIntercept1
    IOHandler = IdServerIOHandlerStack1
    OnException = Main_IdHTTPServerException
    Scheduler = IdSchedulerOfThreadDefault1
    OnCommandGet = Main_IdHTTPServerCommandGet
    Left = 136
    Top = 40
  end
  object IdServerCompressionIntercept1: TIdServerCompressionIntercept
    CompressionLevel = 0
    Left = 120
    Top = 104
  end
  object IdServerIOHandlerStack1: TIdServerIOHandlerStack
    Left = 112
    Top = 232
  end
  object IdSchedulerOfThreadDefault1: TIdSchedulerOfThreadDefault
    MaxThreads = 0
    Left = 120
    Top = 168
  end
  object MyQuery1: TMyQuery
    Connection = MyConnection
    Left = 320
    Top = 208
  end
end