Peform the steps below.
To work around this problem, configure the EnableLinkedConnections registry value. This value enables Windows Vista and Windows 7 to share network connections between the filtered access token and the full administrator access token for a member of the Administrators group. After you configure this registry value, LSA checks whether there is another access token that is associated with the current user session if a network resource is mapped to an access token. If LSA determines that there is a linked access token, it adds the network share to the linked location.
To configure the EnableLinkedConnections registry value
Click Start, type regedit in the Start programs and files box, and then press ENTER.
Locate and then right-click the registry subkey HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System.
Point to New, and then click DWORD Value.
Type EnableLinkedConnections, and then press ENTER.
Right-click EnableLinkedConnections, and then click Modify.
In the Value data box, type 1, and then click OK.
Exit Registry Editor, and then restart the computer.
( BELOW CONFIRMED WORKED)
However in saying that I've seen changing the myob.exe.manifest (or myobp.exe.manifest depending on the version) file correct fix this error. It does this by running AccountRight as the same permission level as the local user account. The myob.exe.manifest file will generally be located in the C drive under the installation folder i.e C: Plus 19. You would be opening that file in NotePad or something similar and locate the line that says: level="HighestAvailable" Change the line to read: level="AsInvoker".