We are currently running som experiments with Visual Studio 2008 and VSTO 3.0. But when deploying a solution to a client workstation we have encountered a problem with the VSTO file type association. For some reason the file type .vsto was suddenly associated with notepad. An after this we can not correctly use the setup files generated by VS 2008 / VSTO 3.0 on this machine.
We hare tried uninstalling and reinstalling Visual Studio Tools for Office Runtime 3.0, but this did not reset the file association for VSTO file types. We have not been able to manually set the association, as we can't find an the appropriate program. The client workstation is running Vista.
Could anyone please guide us how to set the .vsto file mapping correctly - either manually or somehow automatically by reinstalling.
Thanks in advance
Thomas N. Sorensen