A lot of precompiled binaries are available by anonymous ftp are available more conveniently from one of the DECUS collections. Just about anything that runs under X-windows on a Unix platform will run under DECWindows on VMS. Generally the difficulties in porting are comparable to porting between two different Unix platforms. (That's what that endless maze of "#ifdef"'s is in there for in the first place!) That's a good question, and I thought the license terms itself would say. But the copy I have from http://www.montagar.com/hobbyist/license_terms.html is silent on the subject! Comments on comp.os.vms tend to indicate that 6.1 is covered, but that 6.2 isn't (because 6.2 is still "currently supported" commercially.) I forget how much RAM you have, but if you have more than 16 Mbytes you won't have any problems. If you have 16 Mbytes or less, you might be a bit tight on memory and would incur some paging/swapping, depending on what you're doing. Tim. (shoppa(a)trailing-edge.com)