To facilitate shared use you should install the Ca.OpenROAD.Orrsolib and Ca.OpenROAD assemblies in the Global Assembly Cache. The OpenROAD installer can do this implicitly. Optionally, you can also install them local to any application that uses them, in accordance with the .NET Assembly Resolver search rules.

For development purposes with Microsoft Visual Studio, you must create a reference to a copy of the Ca.OpenROAD assembly that lives outside of the GAC. You can use the copy that Ingres has deposited in the ingres\ordotnet directory.

For compilation under ASP.NET, the external copy of Ca.OpenROAD.dll is not needed. ASP.NET will extract the referenced assembly from the GAC to compile with it, as long as the correct reference is included in the web.config file.