NetUser delete file carelessly on NT4.0

you can prevent users from deleting shared files on the network by removing the everyone-full control option from the permissions tab. Give your domain users read, execute and change. If it is a local share, ie)a user shares his files then deletes them, and if it is always the same problem user, take ownership of his files to prevent him from deleting them..give him read, execute and change as well to his own files.

There is no way to prevent this except by buying third party utilities such as Norton.
The best you can do is to do a back up of the shared folders and restore from that. To do a live backup (when the folders are in use) requires third party utilities.

There are third party applications you can use to save deleted files on the server, similar to the local Recycle Bin - but on a network-wide basis. The one we use is Executive Software's Undelete program. Undelete allows you to control how much disk space the deleted files can occupy, so you don't have to worry about them eating up all your free space. Looks like this is what you need. Good luck!

http://www.restorer2000.com/r2k.htm

Restorer2000 is a powerful utility, which can restore files being deleted accidentally in NTFS partitions and even reconstruct formatted and corrupted drives.
Restorer2000 can restore files such non-trivial cases as national language filenames, very long filenames, NTFS compressed filenames and files with an alternative data streams - such as Windows 2000 file information.
Unique SmartScan technology combined with flexibility of adjusting all parameters gives you real control over fastest data reconstruction ever seen.
Usage of Drive Images is very useful for such tasks as recovering drive with a lot of bad sectors.

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