How do we remove Exchnage 5.5 from 2000 domain without the server (it died).

We have a windows 2000 domain with 2 DC's. We had a windows 2000 server with exchange 5.5 running. That server died. When it did, the old IT guy installed a 3rd party mail server, reconfigured all the outlook clients to use POP3, and then pointed them at the new mail server. Now, 1 year later, we happen upon the client, and they want to go back to exchange. They have a copy of Exchange 2000 Ent edition, paid for, that they want to use. When we try to install however, it is asking for the Exchange 5.5 server, which is no longer a memory, much less a working server. Question; how do we remove any trace of the Exchange 5.5 server from the domain, so that we can then install Exchange 2000 server.
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tdiopsAsked:
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rakeshmiglaniConnect With a Mentor Commented:
open adsiedit.msc and expand the configuration container
expand services and then look if you have an entry there for microsoft exchange
if you are able to locate microsoft exchange then check what all you have under it.
also look for any active directory connectors there

let me know what you find.
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rakeshmiglaniCommented:
is ADC (active directory connector) installed and configured?
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tdiopsAuthor Commented:
would that be on the DC?
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tdiopsAuthor Commented:
I do not see an ADC on either DC. I thought that was usually installed on the Exchange server?
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rakeshmiglaniCommented:
if it is not installed then it is fine as the ADC links the exchange 2000/2003 with exchange 5.5
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tdiopsAuthor Commented:
so the question still stands, how do we remove any trace of the 5.5 server, and where is the new install of 2000 reading from that is requiring it to have the exchange 5.5 server information. We have installed 2000 exchange before in a new environment with no 5.5 servers, and it never asks for a 5.5 server. Since there was one installed before, and it was not removed nicely, how do we remove it forcefully without access to the 5.5 server or 5.5. oftware?
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tdiopsAuthor Commented:
rakeshmiglani, thanks for all the help so far. In the ADSIEDIT.msc, I searched all the conf containters for Exchange and found quite a few references back to the old maill server. I have removed them all. I then retried the 2000 install and it is installing beautifully now. Thanks for all the help. As soon as the install fiinishes, I will award you the points. I just want to keep this question open in case a small problem pops up. Thanks.
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