void AddSolution(Solution sol)
{
SolutionAddinData data = sol.GetAddinData();
if (data != null)
{
RegistryInfo reg = new RegistryInfo();
reg.ApplicationName = data.ApplicationName;
reg.CachedRegistry = data.Registry;
tree.AddChild(reg);
registries [reg.CachedRegistry] = reg;
solutions [sol] = reg;
}
}