I need to be able to open Internet Explorer 7 with several url paramaters so that each url will open at the same time. I would like to be able to do this from code (ie .NET Process.Start() command).

Any suggestions would be much appreciated.

There's no way to do this just using shell execution. You can CoCreate an IE instance and then call .Open on it, passing the new OpenInNewTab constant (http://msdn.microsoft.com/library/default.asp url=/workshop/browser/webbrowser/reference/enums/browsernavconstants.asp) to Navigate2 (http://msdn.microsoft.com/library/default.asp url=/workshop/browser/webbrowser/reference/ifaces/iwebbrowser2/navigate2.asp)

See also http://msdn.microsoft.com/library/default.asp url=/workshop/author/dhtml/overview/tab_impact.asp