This should work (save as a .vbs file):
Const navOpenInBackgroundTab = &H1000 site1 = "site1.com" site2 = "site2.com" site3 = "site3.com" Set oIE = CreateObject("InternetExplorer.Application") oIE.Visible = True oIE.Navigate2 site1 oIE.Navigate2 site2,navOpenInBackgroundTab oIE.Navigate2 site3,navOpenInBackgroundTab Set oIE = Nothing