For a long time now, I've noticed there are two exe files for IDEA: idea.exe and idea64.exe. It seems obvious from the naming that idea64.exe is a 64-bit version. However, I've never found any reference to this in the IDEA docs.
First, is there a reason why the difference between these files isn't explained anywhere? It seems odd that JetBrains would provide a 64-bit version, but never mention it or explain why you'd use it over idea.exe.
And second, if one wishes to use the 64-bit IDEA, do we have to manually start it up using idea64.exe? Or does idea.exe have some logic built into it that checks whether the system is 64-bit, and automatically launches idea64.exe if it is?