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windows 2003 R2 Enterprise 64 bit startup error

Windows 2003 r2 enterprise 64 bit edition server when i restart the server i get this error

Event Type:      Error
Event Source:      Service Control Manager
Event Category:      None
Event ID:      7023
Date:            9/9/2010
Time:            12:34:09 PM
User:            N/A
Computer:      TGCS005
The File Server Resource Manager service terminated with the following error:
File Server Resource Manager is not a valid Win32 application.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
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3 Solutions
Do you have free disk space to allow for all services starting? Please check your virtual memory settings. One of your memory modules may have gone sour.
InserachofAuthor Commented:
Thanks my disk space is 160GB with 134gb free

I have 4gb of physical memory

and virtual memory is set to 2046 mb

I been reading that dfsext.dll might be the issue?

this is a 64bit system thinking I might have the wrong version of dfsext.dll? but I am not sure
The information about file size can be confusing... I've been reading it too and came up with this: http://techrepublic.com.com/5208-6230-0.html?forumID=101&threadID=208655&messageID=2507988&tag=content;leftCol
Looking at your config, I would  Run a defrag before changing sizes, increase the size of virtual memory to 3072 or 4096, make sure the min and max are set to the same size to avoid fragmentation.
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InserachofAuthor Commented:
it looks like my dfsext.dll file is 32bit is there a 64bit version?

I have temp set the service to disable so it will not try to start

I checked my original cd Windows Server 2003 R2 Enterprise 64bit and found on disk 2 dfsext.dl_
size only 28kb  does expand still work these days to extract this file?

would like to see if thats the same onle that is on the server

Cant compare with my other 2003 servers since they are 32 bit R2 Standards
Sorry I had not noticed your comment earlier.
Yes, expand still works.
I hope you were able to resolve on your own since this has been going on for quite some time.
If not;
Resolution1. Replace the corrupted DFSEXT.dll with the working one in Windows Server 2003 R2 Disc2
1. Install "Windows Recovery Console" by running "Winnt32 /cmdcons" in the CLI.
2. Boot into recovery console.
3. Expand the DFSEXT.dll from the Windows Server 2003 R2 Disc2 to overwrite the corrupted file under the C:\Windows\System32
Expand D:\CMPNENTS\R2\DFSEXT.dl_ C:\Windows\System32

Resolution2. Uninstall and Re-install File Server Resource Manager
Control Panel -> Add or Remove Programs -> Add/Remove Windows Components -> Management or Monitoring Tools -> Detail -> File Server Resource Manager

Resolution3. Find another working Windows Server 2003 64 bit Enterprise Edition which works with File Server Resource Manager; copy the DFSEXT.dll from the working server to overwrite the corrupted one on the problematic server. (not likely to happen since you only have 32 bit... If you had the hardware, you could temp load a 64 bit server:)

InserachofAuthor Commented:
I uniunstalled the product for now will revisit at a later time
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