the file path may appear a bit different depending on your OS. When looking at the folders in Explorer, it will visually say "My Documents", but if you look in the path up top it will actually be using "Documents" in there:

C:\Users\<UserName>\My Documents\My Games\FINAL FANTASY XIV - A Realm Reborn

versus

C:\Users\<UserName>\Documents\My Games\FINAL FANTASY XIV - A Realm Reborn

The odd thing is, when making the batch file, the truncated 8.3 names used the Mydocu~1 short name instead of Docum~1. I shared the character folder on the PC (only using one character, so just shared it instead of the FFXIV parent folder). So I can just map to that share directly and push/pull using xcopy with the /D flag so it only overwrites if copying a newer version over an older one. Here's the breakdown of the the .bat:
net use z: \\<IP address of target PC>\<name of shared folder> /USER:<UserName> <Password> /PERSISTENT:NO
C:
cd \users\<UserName>\mydocu~1\mygame~1\finalf~2\FFXIV_~1
xcopy *.DAT Z:\*.* /D /Y
C:
ECHO OFF
ECHO - FFXIV_CHR* (FFXIV_~1) folders may change with new toon.
ECHO - find new shortnames with DIR /X command from CMD prompt
PAUSE
net use Z: /DELETE
This creates a temporary mapped drive (z:\) to the shared character folder on the old XP box, then pushes only newer versions of the folders from the laptop over to that XP box (/Y lets it automaticaly overwrite, /D tells it to only overwrite if newer). It pauses so I can see the results of the copy operation (how many actually got copied and errors if any), then echoes a reminder that if I create new characters, I may need to adjust the process to hit new folders. Tap any key and it will continue the script, which removes the mapped drive and exits the DOS prompt.

Note that it uses finalf~2 for an upper level folder in the path. This is because I had the benchmark on there before the game, so it enumerated the game as folder #2 (finalf~1 would put it in the benchmark folder as that was on there before the game--they enumerate based on when created, not alphabetically). The character folders do the same thing too (FFXIV_~1, FFXIV_~2, etc.) based on when created, not alphabetically. I know.. it looks awkward with the short names. It's just an old habit of mine for avoiding issues when moving across different versions of Windows. Short names will always work, and you don't have to worry so much about spelling or punctuation.

Note also that this is only copying character data. This is not grabbing the controller and graphics settings and such---that is in the root level of the FFXIV folder (FFXIV.cfg, FFXIV_Boot.cfg).