_MobileItem.HTMLBody Property
Office 2010
Returns or sets a String (string in C#) that represents the HTML body of the specified MobileItem object. Read/write.
Assembly: Microsoft.Office.Interop.Outlook (in Microsoft.Office.Interop.Outlook.dll)
The HTMLBody property specifies the HTML representation of the body of a Short Message Service (SMS) or Multimedia Messaging Service (MMS) message. Use the Body property to specify the body of an SMS message in clear-text, and the SMILBody property to specify the body of an MMS message in Synchronized Multimedia Integration Language (SMIL).