I was trying to install a test version of 7.0.2 on my development server, and it deleted the 6.5.4 server that was currently running on it.
Can I just reinstall the 6.5.4 instance without any ill effects? Just the program files are missing, nothing else. I also have a backup of my data files, names.nsf, decsadm.nsf, etc.
I thought I could install two server instances with different domains, I guess not. 
Deb
Subject: Whoopsie! Accidently uninstalled the server
The Data Directory and Notes.ini should not have been deleted from your 6.5.4 install. So uninstalling the Domino server application and reinstalling the 6.5.4 software with the same locations etc should resolve the error made. Now if you want to have different instances of a Domino server running on the same machine you may want to use a Virtual Server software like VMWARE. This will allow you to have multiple server running of a single bit of hardware.
Even Partitioned server are on the same Domino version.
System i Servers can run multiple version of the same software without having to LPAR the box… but from what you have siad the dev server = windows?
Subject: RE: Whoopsie! Accidently uninstalled the server
If you want just to try, you can delete from registry branch HLM\software\lotus\domino
Then you can select new folders during setup. But still only one of that servers can running at the same time.
Subject: RE: Whoopsie! Accidently uninstalled the server
Do I have to go back through the server setup procedures?
Subject: RE: Whoopsie! Accidently uninstalled the server
YES uninstall the Software… and point the install to the same location.
ie
program =C:\program files\lotus Domino\
Data = c:\program files\lotus Domino\data
Then if there is an issue after this just open the NOTES.ini and check the 2 paths at the top of it to make sure they are pointing to the correct data directory path.
Subject: You Guys Rock
Thanks for the advice!
I guess I’ll have to petition for a separate test server for my 7.0.2 testing.
Subject: Whoopsie! Accidently uninstalled the server
Hi Deb,
All that you should need to do is install the correct release of Domino over the top of the current installation.