While attempting to install Adobe Reader 9, it fails with an error that reads:
Access is Denied.
Please choose the extraction location:
C:\Documents and Settings\rfm\Local Settings\Application Data\NOS\nos24\
I deleted the NOS directly and tried again. This verified that the installer could create the directory without a problem, but I still got the error. I am an administrator on the system. There should be no reason that I can't access this directory. There is plenty of disk space.