Debugging Your Provider
There are two ways to debug your provider:
Because providers are created in process, you can create some consumer code using the OLE DB consumer templates and step into the provider normally.
You can use various utilities that come with Visual C++.
To use debugging
Open the provider project.
On the menu bar, select Projects > Properties.
In the Property Pages dialog box, select the Configuration Properties > Debugging property page.
Select options as required, then choose OK.
Set breakpoints, and then debug as usual.