@Irma wrote: You could try to check if the antivirus is blocking you. Try to add as an exemption the folder in question and the SAS files into the antivirus and see if it makes a difference or not. Or try to temporary disable the antivirus and try to use that library again to test if the antivirus is preventing you to use that library. @Irma Considering that the original poster has not returned to this forum since April of 2011 this is likely a dead topic. ... View more