This error has been reported before and was resolved after much troubleshooting, but the cause was discovered to be an Adagio program file that was flagged as Read-only.

The file in question is EZSSILCK.LD4. This file is where the ADS (Adagio Data Source) file writes the resource locks to disk, and obviously must be read-write. If ADS can't write to this file for any reason this error will occur. It may also occur if the O/S is holding this file for some reason.

The EZSSILCK.LD4 file is located in the same directory as EZTASKS. At a site using ACCPAC Plus with Adagio, this will most likely be in \ASP. If this is an Adagio-only dataset, then you should find this file in the \softrak\system folder on the drive where Adagio was installed.

RESOLUTION
With all Users out of Adagio, change the attribute of the file EZSSILCK.LD4 to be ?archive? - not Read Only! If there are still problems, the file can be deleted if all users are out of Adagio. It will be recreated.

Hope this helps!