Hi William Try double backslashes "\\" or "/" (see FAQ 2.16: http://cran.r-project.org/bin/windows/base/rw-FAQ.html) install.packages("C:\\Users\\rusa\\DMwR_0.2.1.zip", repos = NULL) Regards, Sina -- View this message in context: http://r.789695.n4.nabble.com/no-subject-tp3873600p3873738.html Sent from the R help mailing list archive at Nabble.com.