I just installed ST7 yesterday and today went looking for the readme file. Instead of finding ST7 in my PROGRAMS FILE (x86) folder, it was in the PROGRAMS FILE folder. ST6 saved to the former folder. So far, there doesn't seem to be any performance issues. Does this matter and should I just ignore this?
Solid Edge ST7 is available as a 64 bit program only. That is why it placed itself (by default) in C:\Program Files instead of C:\Program Files (x86) as the older 32 bit versions did.
There hase been a 64 bit version of SE for a long time, but most customers didn't need it. It was available at request or as a special download.
The advantage of 64 bit applications is that they can address ALL physical memory of your PC, instead of only 3 Gb. This will not make SE run faster, but you can work with larger assemblies before running out of physical memory.