It looks like they have pulled DriveTop off of their site. I downloaded DriveTop16V14 from their site December of last year. It's 50MB. I can't tell for sure, but it may be that IndraWorks Ds 09V12 has replaced it. You can find that at Bosch Rexroth Electric Drives and Controls That link should take you to a page with the Download link to the page with the file. Their website leaves me with a whole lot more questions than answers.