I have a commercial account with multiple phones, V365s and RAZR V3s. After working through multiple work arounds and downloading additional phone specific files, the only piece of this software that came close to working was the backup feature and after all the trouble I was not confident enough in the product to wipe a phone and try to restore the phone book. I subsequently learned that there are known issues with different versions and service pack levels of W2K as well as XP. I finally un-installed the software and threw it away. I purchased what was advertised as a retail package but what I got was a CD and two cables stuffed in a bubble wrap envelope (which is what I expected for the price but it should have been described correctly). It did arrive on time and undamaged. I finally signed up for the back up service from my provider for $1.99/mo. which works fine. Don't waste your money on this product.