You need to right click on the 2nd project and click on "Set as Startup Project"

~~Bonnie

>In VS2K5, I've two projects in a solution. First one a web service, second a windows application.
>F5 always tries to debug the first project, so I right click on the second project and from the shortcut menu I select debug/start new instance(or step into new instance), but I get the following error:
>

>---------------------------
>Microsoft Visual Studio
>---------------------------
>Error while trying to run project: Unable to start debugging.
>The binding handle is invalid.
>---------------------------
>OK
>---------------------------
>

>
>How do I fix or get around this problem?