The decorations used in the message.
When there are multiple decorations used the values are bitwise OR'ed! Example to check for bold:
if((Decorations & MSNTextDecorations.Bold) > 0) ....If you want to use multiple decorations in a new message:
textMessage.Decorations = TextDecorations.Underline | TextDecorations.Italic
TextMessage Class | XihSolutions.DotMSN Namespace