Hi,

Due to a project I am working in, I need to generate a solution file
automatically that includes one C# project. I have taken the format for that
.sln file from existing solution files created by VS.NET 2003. I only
generate two new GUIDs. This is the template that I use:
-----------------------
Microsoft Visual Studio Solution File, Format Version 8.00
Project("CS_GP_PackageGUID") = "CS_GP_OriginalProjName",
"CS_GP_OriginalProjName.csproj", "CS_GP_ProjectGUID"
    ProjectSection(ProjectDependencies) = postProject
    EndProjectSection
EndProject
Global
    GlobalSection(SolutionConfiguration) = preSolution
        Debug = Debug
        Release = Release
    EndGlobalSection
    GlobalSection(ProjectConfiguration) = postSolution
        CS_GP_ProjectGUID.Debug.ActiveCfg = Debug|.NET
        CS_GP_ProjectGUID.Debug.Build.0 = Debug|.NET
        CS_GP_ProjectGUID.Release.ActiveCfg = Release|.NET
        CS_GP_ProjectGUID.Release.Build.0 = Release|.NET
    EndGlobalSection
    GlobalSection(ExtensibilityGlobals) = postSolution
    EndGlobalSection
    GlobalSection(ExtensibilityAddIns) = postSolution
    EndGlobalSection
EndGlobal
---------
I replace CS_GP_PackageGUID with a generated GUID and CS_GP_ProjectGUID with
another. The first GUID is for the solution and the second for the project.

When I try to open the .sln file with VS.NET, I get a message "The
application for project '...' is not installed. Make sure the application for
the project type (.csproj) is installed".

And the only way to incorporate the project in the solution is to open it
with VS.NET and remove it and reload it.  This changes the first GUID
(CS_GP_PackageGUID). After that the project is incorportated correctly into
the solution.

It seems to me that the GUID needs to be generated by the solution.
But, there should be a way to force it to accept a GUID provided by me or to
somehow figure out what is so special about the GUID generated by VS.NET.

Please help!
Juan Dent