From the AIF manual (which I believe ODBCLINK uses AIFCHANGELOGON) UDC environment The AIFCHANGELOGON AIF does not execute the logon UDC as a regular logoff and logon would. So I think Tom Emerson's logon UDC would work to keep users off of MPE noaccess option logon,nobreak,nohelp continue EOJ bye ***** . > _____________________________________________________________ > Keven Miller mailto:[log in to unmask] http://www.exegesys.com > >