Step 2 - Adding an Existing Business Project
To add an existing business object project to your WCF Service solution, follow these steps:
- Go to the Solution Explorer, right-click the solution node (the first node), and select Add | Existing Project... from the shortcut menu.

In the Add Existing Project dialog, navigate to the directory that contains your business object project, select the project file, and then click the Open button.
Your Solution should now contain the specified business object project:

- When you eventually build this solution (not yet), the business object project will produce a dll and the Web Service project will produce another dll. In this step you will add a reference to the business object dll in the Web Service project. To do this, right-click the Web Service project's References node and select Add Reference... from the shortcut menu:

- In the Add References dialog, select the Projects tab, select the business object project then click OK to add the assembly to the project.
- Next, rebuild the new solution to make sure everything's set up properly. To do this, select Build | Build Solution from the main menu.
See Also:
Step 3 - Setting up Data Access for Your New WCF Service
© (c) 2026 Oak Leaf Enterprises, Inc., 1996-2026 • Updated: 08/01/17
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