[DUG] Renaming file in use

[Sean Cross]

AFAIAA, it is like that on all NT descendants.  It is done deliberately
so that you can update files without having to kick users off.  I use it
to update an application on a citric server without having to kick off
50 users.

 
Regards

Sean
---------------------------------------
Sean Cross
mailto:sean at intuitex.com

Pics Print - The photo printing solution for Windows. 
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> -----Original Message-----
> From: delphi-bounces at ns3.123.co.nz 
> [mailto:delphi-bounces at ns3.123.co.nz] On Behalf Of Rohit Gupta
> Sent: 2 December 2005 6:29 p.m.
> To: NZ Borland Developers Group - Delphi List
> Subject: Re: [DUG] Renaming file in use
> 
> 
> Sean,
> 
> I thought I would try this out and you are right, another crappo from 
> Microsoft.  Not only can you rename the file, it also renames 
> the path 
> in the shortcut that launched it.  Another way a virus can 
> get in.  And 
> you can even rename the dll thats in use.  Further to that if 
> you rename 
> a system dll, it silently copies it from the backup.  All test on 
> win2k.  Will all this really work the same way on XP, 2kserver, 
> 2k3server, Terminal Services, a pc using Domain Server and 
> Longhorn ????
> 
> I would still maintain that its is idotic to rely on this mechanism. 
> 
> Any primitive virus protection thingy should foil this.  But 
> does it ?  
> :-(  Zonealarm certainly did not complain.
> 
> I despair.  Its worth the effort to write a virus to teach MS 
> a lesson.
> 
> Just for the record OS2 had the same weakness and I created a 
> fuss about 
> it in public forums then.  :-(   But then I forget... windows has the 
> basis as OS2.
> 
> Sean Cross - CRM wrote:
> 
> >RenameFile should work on open files for Windows NT and up.
> >
> >Regards
> >
> >Sean
> >-------------------------
> >Sean Cross
> >Systems Development Manager
> >CRM
> >PO Box 230
> >Napier
> >DDI:	06 834 0362
> >Mobile:	021 270 3466 
> >Email:	sean.cross at crm.co.nz
> >
> >Offices located in Auckland, Napier, Wellington & Christchurch
> >
> >...
> >  
> >
> >>Offtopic Nostalgic thought (sigh)  Unix handles renaming
> >>files in use much better.  It allows it no problem.  Any 
> >>files with the old version open still access the old data 
> >>file which is preserved until closed.  When reopened it gets 
> >>the new version.  Very transparent.  Windows just doesn't 
> >>allow it, even if the file is only open read-only.  If I 
> >>remember VMS did something even smarter with maintaining 
> >>multiple versions of files as part of the filesystem.
> >>
> >>The scheme I use is for programs.
> >>
> >>John
> >>
> >>
> >>    
> >>
> >
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> >
> >
> >  
> >
> 
> 
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