From: New Jersey
I've been playing with various installs in the lab recently, using W2K3 R2, and the ADAM install failed regularly. It can't seem to find the files on the install CD. I copied both CDs from the R2 install to a file share and now when it prompts for the W2K3 CD, I browse to the share, and then directly to the ADAM install folder and have had no further problems. It's almost as if it can't locate the install path in the R2 release.
I just had this problem last night. I was adding a 3rd ISA server and I got this exact same error. What I did was add the new server name/IP to Replicate Configuration Storage servers object underneath the Enterprise Array Computer Sets group. I was able to get by with that.
I had exactly the same error message while installing ISA Server 2006 EE in fresh Windows Server 2003 R2 SP2 installation week ago. Nothing I found from the Internet helped, so I opened MS Premier case.
Result was that after I uninstalled Windows SP2 I was able to install ISA and even after that I reinstalled Windows SP2 and ISA 2006 SP1 and everything worked fine.
If you have Windows 2003 SP1 and ISA 2006 you have to install ADAM SP1 before installing Windows SP2 but in R2 the ADAM SP1 is included.