Yahoo! Anti-Spy Application. The most popular version of this product among our users is 1.0. The names of program executable files are RUNDLL32.EXE, ypsr.exe. Works with gif, wmf, jpg, png, bmp, jpeg, shs, cat, sst, cnf, dib, tif, dun, emf, udl, jpe, p7s, qds, rat, shb, tiff, jfif, theme, msstyles and appref-ms file types. The product will soon be reviewed by our informers.You can check Kaspersky Anti-Virus, Anti Keylogger Shield, ZoneAlarm Spy Blocker Toolbar and other related programs like Anti-Spy.Info at the "download" section.