Ajit, > This page > https://urldefense.proofpoint.com/v2/url?u=http-3A__www.unidata.ucar.edu_software_udunits_udunits-2D2.2.24_doc_udunits_udunits2.html&d=DwIGaQ&c=n6-cguzQvX_tUIrZOS_4Og&r=r2RWzTDlQWYBynlVM_6Rp_vU0l46l17fNWhWpLtDmxk&m=zTrULcXpxGLsL1fpC93-QO5kRXQ-ba6lXnoXIT-rdgE&s=_4Py6znAv7wxxCbQRgziZH_caBqlVS0uWZb9lD21l-Q&e= > used to work before. Web page seems to be down/offline. Again, that's not the link I sent. The URL definitely doesn't start with "urldefense.proofpoint.com". Something on your end is messing with the URL. I would fix that. > I'm getting this > > The requested URL /software/udunits/udunits-2.2.24/doc/udunits/udunits2.html > was not found on this server. If you're going to "urldefense.proofpoint.com", then I'm not surprised. Following this chain: Go to www.unidata.ucar.edu (That's "www" <dot> "unidata" <dot> "ucar" <dot> "edu") Hover over the tab "Software" Click on "UDUNITS" Click on "Documentation" Click on "2.2.24" Click on "How This Package Differs from the Original UDUNITS Package" Regards, Steve Emmerson Ticket Details =================== Ticket ID: MZK-350035 Department: Support UDUNITS Priority: Normal Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.