>>Thank you very much for the suggestion. Because of it I started a small project with 2 prg files and discovered that I am able to interact with Vault form the IDE in my home computer but not the one at the office, and also not from another machine at the office. So now the detective work starts.
>
>Same OS?

Sorry about that, I thought I answered you. Yes, same OS. Pretty similar setup.

I am getting ready to uninstall and reinstall stuff. Since Vault is built on VS I should look at 2005 and 2008, actually. Hmm. At home I don't have VS2008 installed. Let me look into that. Doesn't mean .NET 2008 or whatever it is called is not installed, but definitelty I don't have VS2008 installed at home.

Alex