WCF / ASMX :: Accessing Service From Classic ASP
Jun 4, 2010
We have a big portal with a lot of code written in classic asp + asp.net 2.0 + JavaScript. We are planning to slowly migrate to .net 3.5 framework with WCF Services. Currently the ASP.Net code is using some business layer to access the database. But most of the Classic ASP is using the old ADO code and directly accessing the data in the page itself. Now, we decided to add a WCF layer between the UI and Business which will be easier to implement with ASP.Net + 3.5, compared to Classic ASP. And we can't invest a lot of Man Hours in converting the Classic ASP pages to asp.net just yet. So we decided to Add a COM layer between Classic ASP and WCF services. So it will be like
Classic ASP -> COM -> CCW (COM Callable Wrapper - Interop) -> WCF -> Business for now.
Later on when we slowly convert the Classic asp pages to asp.net, the COM layer will be removed by default. But for now we are atleast pulling the Business code from Classic Asp pages. We are following this approach because we are not sure how to go about accessing the WCF Service directly from the Classic ASP code.
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