This is a tricker process than I think it needs to be and is not very well documented.
However the process is as follows:
1. Download the Source package from
here2. Open the Zip file you downloaded and extract the file "DNN_Store.resources".
3. Rename this file "DNN_Store.zip".
4. Extract DNN_Store and you'll find all the source code.
I then convert the solution to Visual Studio 2005 so that I can use features of .Net 2.0.
5. Open the file "DotNetNuke.Store.sln" with Visual studio 2005.
6. The solution is a VS.Net 2003 solution so you'll need to convert it to 2005 (using VS.Net 2005's conversion routine). To do this conversion, check the 4th post in
this thread.
6. (Optional - but advised) Link the source code up to some form of source control (such as MS Source Safe).
7. You're now ready to make changes of your own.
Hope that's of use?