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C# (C sharp): Microsoft FAQ

Managing Projects & Solutions

Convert a VS 2003 solution into VS 2002 format by chiph
Posted: 5 Sep 03

If you open a .NET Solution file and get the "not a valid solution" message, it's likely that it was created in VS 2003 and you are trying to open it with VS 2002.  To work around the problem, just do this:

1) Go into the solution file in a text editor and replace the line:

    Microsoft Visual Studio Solution File, Format Version 8.00


    Microsoft Visual Studio Solution File, Format Version 7.00

2) Go into each project file in a text editor and replace the lines:

        ProductVersion = "7.10.3077"
        SchemaVersion = "2.0"


        ProductVersion = "7.0.9466"
        SchemaVersion = "1.0"

3) Now go open the solution as usual.

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