It's different in the sense that will not work without preparing the OS. There is much confusion in this category, as to /PAE, /AWE addressing, /3GB, /userva, and what needs to be set for this to work. For 32 bit systems the OS has to be set properly, like XP needs 2 boot switches where Vista only needs one. So it's different in that it won't work for 32 bit users just to do that.
Although I have never used that tool, people can use it to set the process flag if they like, Step 2. But the batch I have for download is quite easy too.
In the not too distant future, all people will need to do is prepare the 32 bit OS when CA starts providing the exe flagged for Large Addresses.