Originally Posted by R_RAZI PipingSystems FluidFlow v3.22.6 http://www.sendspace.com/file/8hyl10 lic is hiden.:My Computer/tools/folder option/view/hide protected ...click R_Razi I can't find the .Lic file can you send it to me, please, my mail is gustavoballetti@gmail.com i need it!. Thanks!.