Hi I d like to compile the source code from last Affy package for WinXPpro under R18beta however the doc is pretty poor regarding this process... I went to FAQ R Win then to http://www.stats.ox.ac.uk/pub/Rtools/ and downloaded in The essentials, tools and Perl 5.8.0, then MingW from www.mingw.org and I wonder if I need any other stuff from this page ? I m not sure but I dont think I need the cross-conpilers ? what about the others below ? Then I installed MingW and Perl. Then what am i suposed to do....? If I click on Rcmd I dont get any windows to open or just for a second... thanks for your help Philippe [[alternative HTML version deleted]]