Today we got a new solution from a third party, which we installed on our development environment with the help of the supplier. Everything worked fine, but when we installed it on our test environment, it kept complaining that a resource object was not found (“The resource object with key ‘X’ was not found.”). We ran the stsadm -o copyappbincontent but it was still an error. We checked the resource directory in the 12-hive and the virtual directories in the inetpub folder and everything was present. Eventually we deleted the resource files inside the virtual directories and ran the copyappbincontent command again and yes, it worked. Strange problem, but since this solution was not found on the internet by me, I thought let’s share it.

Advertisement