When you attempt to install a new network service on an upgraded SBS 4.5 computer, you receive:
An error has occurred.
Unable to open the file path and file name.
A non-critical error has occurred. You may retry the operation, ignore it, or exit the entire Setup operation.</b>
You are most likely to receive these messages while installing WINS, DHCP, or RAS.
The SBS 4.5 upgrade CD-ROM does not contain the required files. Use CD-ROM 1 from SBS 4.0. After the install, reapply your latest Service Pack.
NOTE: The SBS 4.5 upgrade CD-ROM contains SP4 - <CD-ROM:>\Bkoffice\I386\Sp4setup.exe.