Hi to all, I've done a simple web interface to help to use the BioC annotations packages also for users who are not familiar with R. It uses the AnnotationDbi packages (e.g: every *.db.. hgu95av2.db, hgug4112a etc..). so also for customs arrays we can make the package with makeHUMANCHIP_DB or whatever and add it in the tool. Also it uses RApache http://biostat.mc.vanderbilt.edu/rapache/ and R-2.7.0 You can download it here: http://sourceforge.net/projects/annotweb-bioc/ Basic instructions are in the "INSTALL" file inside the package. I hope you find it useful Best regards Francesco [[alternative HTML version deleted]]