Hi
You need to list the file extensions you wish to allow in the relevant User Groups Settings - see pic attached.
It would be most unwise to allow exe, php, html and similar executables as they may contain a hidden virus or similar.
If you are not familiar with setting up User Groups Settings could I suggest you look at
- Which User-Group is Used? http://www.jdownloads.net/documentations/item/which-user-group-is-used?category_id=29
- Introduction to User Group Settings http://www.jdownloads.net/documentations/item/introduction-to-user-group-settings
Colin
PS please let us know if this solves your problem or you need more help
C
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