Associação entre os tipos MIME e os aplicativos é diferente do Especificação de entrada na área de trabalho , que states
Lines beginning with a
#and blank lines are considered comments and will be ignored, however they should be preserved across reads and writes of the desktop entry file.Comment lines are uninterpreted and may contain any character (except for LF). However, using UTF-8 for comment lines that contain characters not in ASCII is encouraged.