RTFM - Assuming you are running FoxAPI 4.3: B0193UD - Rev D FoxAPI User's Guide in particular, 13. Utility Reference, foxtst will allow you to "exercise and inspect" virtually all API routines. and Appendix H - Configuration File parameters, see maxds for maximum number of datasets, my read shows 1000 as the max, and 100 is the default. BTW, I would guess that when you see the error, the number of open lists is 100. Regards, Tim -----Original Message----- From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On Behalf Of dirk.pauwels@xxxxxxxxxx Sent: Friday, October 31, 2008 10:13 AM To: foxboro@xxxxxxxxxxxxx Subject: Re: [foxboro] IAbatch scopen error Hi Tim, I think you're spot on, from what I've heard from one of the Batchexperts at foxmass. I believe the max nr of datasets can be 3000, (currently it's set at 100) any idea how I can find out how many datasets are in use? I've used foxspy, but I can't seem to find the number of datasets.... Thanks & rgds, Dirk Pauwels - DCS/MOC coordinator Engineering dept. Hexion Specialty Chemicals E mail: dirk.pauwels@xxxxxxxxxx T. +32.(0)3.570.95.97 F. +32.(0)3.570.16.09 Mob. +32.(0)497.428.300 _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave