Error -951 trying to access OLWS database

When I try to connect to a database server (NT 4 SP3, OLWS 7.22) from a client application like ILogin from Informix, I have the error -951 -951 S1000: [INTERSOLV][ODBC Informix driver][Informix]Incorrect password or user fifo is not known on the database server. The user is member of the group Informix-Admin. The only way to avoid this problem is to change this user, and add it to the group Administrators on the NT Server. Is there a direct link with the sharing permissions on the server disk ? Is there another way to allow this user to access the database ? Thank you for your help Fifo Summit Technologies International p.fornaciari@summittechnologies.com