At first I was a little hesitant to order software from this site because the prices seemed too good to be true. After reading other customer reviews, I decided to purchase a download copy of Microsoft Project Standard 2010 to replace my current 2003 version. Later in the day I received an email saying that they were out of stock of the "standard" version, yet gave me a free upgrade to Microsoft Project Professional 2010 at no extra charge. I downloaded and successfully installed a full retail version of the software. I am one happy camper!