Forcing the Creation of Up-to-Date ERDs

Forcing the Creation of Up-to-Date ERDs
From Windows NT Troubleshooting by Kathy Ivens, Osborn McGraw-Hill, 1998

Unless your network is made up of the most phenomenally responsible users in the world, the computers on your network probably don't have a current ERD. You can force the creation of up-to-date ERD information for computers on your network with the Windows NT scheduler (the AT command).

The process involves several steps, and you can write a batch file (and schedule it with the AT command) that performs them all.

You'll need a share on the server (it should be a hidden share for safety) to hold the repair information for each computer, and you'll need a subdirectory in that share for each target computer for which you are keeping repair information.

For this example, the server share is named ERDShare$, and subdirectories under the share are created for each target workstation.

The AT command is AT<targetcomputer>01:00/interactive/every:M,T,W,Th,F,S,Su ServerNameERDShare$MakeERD.bat.

The contents of MakeERD.bat should be similar to this:

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%windir%system32rdisk.exe /s-
net use x: /delete
net use x: ServerNameERDShare$/persistent:no
if not exist x:%targetname% md x:%targetname%
Copy %SystemRoot%repair*.* X:%targetname%*.*
net use x: /delete
where %targetname% is the subdirectory for the target computer under the ERD share on the server. Keep in mind that the /s switch for rdisk tells the program to copy the SAM.

To create the actual ERD for a computer, just format a diskette on your server and copy the files from the %targetname% subdirectory.

There are a couple of things to be aware of before you rush to create this handy fuction:

  • Use full path names for all processes and steps.
  • Create a user (with administrative privileges) for this process and give that user a password that never expires.
  • Be sure the scheduler runs under the context of an administrative user.
  • Do not use the system account-it has no network access for copying files, and therefore the last step of the batch file will fail (the copy across the network to your server).

  • This was first published in November 1999

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