Michael,
Should work but I could not tell strong enough that a 64bit installation is not 
the same for networker than a 32bits, there are parts of the software that 
won't work. Try to do  a vm before perhaps
Kind regards

> Date: Tue, 7 Jun 2011 13:46:16 -0700
> From: dave.werth AT GARMIN DOT COM
> Subject: Re: [Networker] MIgrating NW 7.5.2 from Win2003 32bit to Win2008 
> 64bit on same hardware
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> 
> Michael,
> 
> We migrated from 7.5.2 on windows 2003 to 7.6.1 on Windows 2008 R2 (64bit) 
> but it was on new hardware.  I didn't have to do anything special other than 
> copy the indexes and mm database to the new machine.  I was careful to make 
> sure and recreate the clients on the new machine so they retained their 
> Client ID but other than that it was straightforward.
> 
> I think it would be wise to make backup copies of the res, mm and index 
> files.  As long as you have original copies you can punt and try again if you 
> have problems.
> 
> On the "new" server, I don't know if the switch from 32bit to 64bit makes a 
> difference but you might want to consider creating it with a new client ID to 
> separate it from the old one.  Others probably have a better idea about that 
> than I do though.
> 
> Dave
> 
> Dave Werth
> Garmin AT, Inc.
> Salem, Oregon
> 
> -----Original Message-----
> From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] 
> On Behalf Of Michael Leone
> Sent: Tuesday, June 07, 2011 12:48 PM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: [Networker] MIgrating NW 7.5.2 from Win2003 32bit to Win2008 64bit 
> on same hardware
> 
> I have a Win2003 server running NW 7.5.2. We will be upgrading this
> machine from Win2003 (32bit) to Win2008  (64bit) - by re-formatting the
> boot drive, and installing clean; not an upgrade in place. I was looking
> through the Networker Procedure Generator, and that doesn't seem to be a
> scenario that is covered (i.e., upgrade from 32bit to 64 on same hardware,
> while maintaining all history). The server will have the same name and IP
> address as before.
> 
> Do I need to do a modified sort of disaster recovery - i.e., full
> bootstrap and CFI backup; re-format and install Win2008. Install NW, and
> run a mmrecov, then a "nsrck -L7"?  Does that work 32bit to 64bit - they
> are just NW data files, right, not binary executables?
> 
> Or should I do a save of the /res, /index and /mm folders, and replace
> them after installing the new 64bit NW?
> 
> I don't care about any other data from the old server; we're going to
> re-install all applications, etc from scratch. The only thing I want to
> bring over is the NW history. I need that history. :-)
> 
> --
> Michael Leone
> Network Administrator, ISM
> Philadelphia Housing Authority
> 2500 Jackson St
> Philadelphia, PA 19145
> Tel:  215-684-4180
> Cell: 215-252-0143
> <mailto:michael.leone AT pha.phila DOT gov>
> 
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