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  4. Using an unmanaged C++ DLL in ASP.NET

Using an unmanaged C++ DLL in ASP.NET

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helpcsharpc++asp-nettutorial
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  • J Offline
    J Offline
    James Smith
    wrote on last edited by
    #1

    Hi all... I have a DLL which was created in C++ that I am trying to use in an ASP.NET(VB) web application. In my DLL, I have exported my functions as follows: extern "C" __declspec(dllexport) int Init(char *szString1, char *szString2) In the .NET application, I have imported the library using: Public Declare Function Init Lib "MyLib.dll" (ByVal Hostname As String, ByVal Port As String) As Int32 I copied the library into the bin directory of the .NET application. This seems to run properly on my local machine, but once I moved it to a production webserver, I get an error "Unable to load MyLib.dll" Does anyone have an idea how to solve this problem? Any suggestions would be greatly appreciated. Thanks in advance, James

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    • J James Smith

      Hi all... I have a DLL which was created in C++ that I am trying to use in an ASP.NET(VB) web application. In my DLL, I have exported my functions as follows: extern "C" __declspec(dllexport) int Init(char *szString1, char *szString2) In the .NET application, I have imported the library using: Public Declare Function Init Lib "MyLib.dll" (ByVal Hostname As String, ByVal Port As String) As Int32 I copied the library into the bin directory of the .NET application. This seems to run properly on my local machine, but once I moved it to a production webserver, I get an error "Unable to load MyLib.dll" Does anyone have an idea how to solve this problem? Any suggestions would be greatly appreciated. Thanks in advance, James

      A Offline
      A Offline
      Albert Pascual
      wrote on last edited by
      #2

      Did you registered the DLL?

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