Need to delete an "unknown object type" from AD

[adfreek]

Morning
.
A short while ago I synchronized a clients Exchange 5.5 Directory with their AD. Yesterday, I was upgrading their AD domain to 2003 and on the first server I ran dcpromo on, everything went fine until replication failed halfway through. I tried running dcpromo a few other times with the same results. After digging down further, I was able to track down that initial replication of the domain objects was failing on the same object. This object turns out to be an Exchange 5.5 DL. When I look at the object in ADUC's, it comes back as an "unknown object type".

I wanted to simply delete the object from the directory so I followed some KB articles which essentially tell you to take ownership of it, grant permissions on it, then delete it. Problem is, it will not let me do either giving me an "Unable to set new owner on *OSSLC, access denied.

I now have been trying to use LDIFDE. I created a text file and named it osslc.ldf.txt which contains the command:

dn: CN=ossclc,CN=domain,DC=int
changetype: delete


I then ran LDIFDE -S "filename"

But the object still exists, thus, preventing me from completing dcpromo. Am I doing this the right way with ldifde ? I want to be careful with that tool.

Thanks

 

[adcfaq]

you may use adsiedut.msc or lsp.exe to remove the orphaned objects.