when I delete files in Windows Explorer on Win7x64, NC2SP3IR5 on a mapped share (NSS, SLES10SP3, OES2SP3), some of them (depends on the folder) return immediately, which I can see when I hit F5.
If I delete them in console on the server, they don't return.

How can I delete them permanently from the Windows workstation?
Is there a way to disable this behaviour?