Const wdColorWhite = 16777215
Const wdColorGray10 = 15132390
Const wdColorYellow = 65535

Set objWord = CreateObject("Word.Application")
objWord.Visible = True
Set objDoc = objWord.Documents.Add()
Set objSelection = objWord.Selection

i = 1

objSelection.ParagraphFormat.Shading.BackgroundPatternColor = wdColorGray10
objSelection.TypeText "This is the first paragraph."
objSelection.TypeParagraph()