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copied!<p>Another alternative is to use COM Interop to create an assembly in .NET that is callable from classic ASP.</p> <p>To create a COM Interop assembly from Visual Studio (e.g. Microsoft Visual C# 2005 Express Edition):</p> <ul> <li>Create a new Class Library project</li> <li><p>Open the project properties</p> <ul> <li>Under Application select Assembly Information... and enable "Make assembly COM-Visible"</li> <li>Under Signing enable Sign the assembly and create or select an existing strong name key file</li> </ul></li> <li><p>Write and build the library</p> <ul> <li>COM Interop classes must have a default constructor and only non-static classes and methods are published</li> </ul></li> <li><p>Copy the .dll to the desired folder/machine</p></li> <li>Register the .dll for COM using RegAsm</li> </ul> <p>For example (adjust as necessary):</p> <pre><code>"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "C:\path\to\assembly.dll" /tlb /codebase </code></pre> <ul> <li>Call the assembly from ASP</li> </ul> <p>For example (adjust as necessary):</p> <pre><code>Dim obj, returnValue Set obj = Server.CreateObject("MyProject.MyClass") returnValue = obj.DoSomething(param1, param2) </code></pre> <p>Note:</p> <ul> <li>the assembly must be re-registered via RegAsm when it's updated</li> </ul> <p>See also:</p> <ul> <li><a href="http://msdn.microsoft.com/en-us/library/zsfww439(VS.71).aspx" rel="nofollow noreferrer">Exposing .NET Framework Components to COM (MSDN)</a></li> <li><a href="http://www.codeproject.com/KB/dotnet/dotnetcomponentandasp.aspx" rel="nofollow noreferrer">CodeProject: Call a .NET component from an ASP Page</a></li> </ul>

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