calling unmanaged dll failed in web service

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  • =?Utf-8?B?QmlsbHkgWmhhbmc=?=
    #1

    calling unmanaged dll failed in web service

    I have a unmanaged dll and I could call it successfully in winform app.
    But in web service it will failed, and I was in debugging mode, it was
    executed in admin account.

    Why?

    Thanks,
    -Billy
    Tags: None
    • John Saunders
      #2
      Re: calling unmanaged dll failed in web service

      "Billy Zhang" <htinns@noemail .noemailwrote in message
      news:E8321EA8-65AC-4AB0-9A54-21281B457420@mi crosoft.com...
      I have a unmanaged dll and I could call it successfully in winform app.
      But in web service it will failed, and I was in debugging mode, it was
      executed in admin account.
      This DLL may be making assumptions about the environment it is running in.
      It may assume it is running in a process with a message pump, for instance.
      That assumption would be false in a web service, windows service or ASP.NET
      application. It may also be assuming that there is only one thread accessing
      it at a time. That assumption would also be false in a server situation.

      It's possible that you simply cannot safely use that unmanaged DLL in a
      service.
      --
      John Saunders | MVP - Connected System Developer

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        • Steven Cheng
          #3
          RE: calling unmanaged dll failed in web service

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            • Steven Cheng
              #4
              RE: calling unmanaged dll failed in web service

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