7bb5e646_Shortcut_Element__Description
[Name] Name [Type] LongFileNameType [Required] Yes [Description] 
In prior versions of the WiX toolset, this attribute specified the short name. This attribute's value may now be either a short or long name. If a short name is specified, the ShortName attribute may not be specified. If a long name is specified, the LongName attribute may not be specified. Also, if this value is a long name, the ShortName attribute may be omitted to allow WiX to attempt to generate a unique short name. However, if this name collides with another shortcut or you wish to manually specify the short name, then the ShortName attribute may be specified.
Shortcut Element