I am having some problems with unz() under R 1.7.1 using windows NT 4.0 download.file(url="http://www.test.com/test.zip", destfile="c:/temp/test.zip", mode="wb") z <- unz("c:/temp/test.zip", "home/test.txt", open="r") test <- read.table(z,sep=";",skip=1,header=T,as.is=T) close(z) this code seems temperamental and seems to work if you play around with open(z) and isOpen(z) eventually ... otherwise I get the error: Error in readLines(file, skip) : seek not enabled for this connection I have checked this out further since I posted a melp message on Friday, I think it must be a bug. If anybody could offer advice? Regards, John Marsland ********************************************************************** This is a commercial communication from Commerzbank AG.\ \ T...{{dropped}}