You need axlCmdRegister("spnchk" 'Single_Pin_Net_Check_Routine ?cmdType "interactive") in your allegro.illinit file . Then 'spnchk' in your Allegro command-line window. __________________________ Richard Moffat PCB CAD Manager Allied Telesyn Research Ltd, NZ. ph. +64 (3) 3393000 richard.moffat@xxxxxxxxxxxxxxxxxxx >>> jack.kelly@xxxxxxxxxx 28/06/2005 9:24:13 a.m. >>> what is the correct syntax to get this skill file to load in my allegro.illinit file. it was written by David J. Scheuring NOTICE: This message contains privileged and confidential information intended only for the use of the addressee named above. If you are not the intended recipient of this message you are hereby notified that you must not disseminate, copy or take any action in reliance on it. If you have received this message in error please notify Allied Telesyn Research Ltd immediately. Any views expressed in this message are those of the individual sender, except where the sender has the authority to issue and specifically states them to be the views of Allied Telesyn Research.