| Attribute | Description | Required |
|---|
| file | Assembly Filename (required unless a fileset is specified). | False |
| millis | Specifies the new modification time of the file in milliseconds since midnight Jan. 1, 1970. | False |
| datetime | Specifies the new modification time of the file in the format MM/DD/YYYY HH:MM AM_or_PM. | False |
| failonerror | Determines whether task failure stops the build or is just reported. Default is "true." | False |
| verbose | Task reports detailed build log messages. Default is "false." | False |
| if | If true then the task will be executed; otherwise skipped. Default is "true." | False |
| unless | Opposite of if. If false then the task will be executed; otherwise skipped. Default is "false." | False |