Prepare:
1. Start->Run, type "regedit"
2. Find HKEY_LOCAL_MACHINE\SOFTWARE\PlayOnlineUS
3. Right click the folder and select "Export"
Move:
4. Copy all files to new PC/external drive
5. copy the registration file you exported
Install:
6. open the exported registration file with the texteditor of you choice (notepad will do) and edit all drive-letters to match your external harddisks driveletter. After that save the changes.
7. run the changed registration file to import the registration data
8. create a .bat file, and put it in PlayOnline\SquareEnix\
content of .bat file:
regsvr32 /s "FINAL FANTASY XI\FFXi.dll"
regsvr32 /s "FINAL FANTASY XI\FFXiMain.dll"
regsvr32 /s "FINAL FANTASY XI\FFXiResource.dll"
regsvr32 /s "FINAL FANTASY XI\FFXiVersions.dll"
regsvr32 /s "PlayOnlineViewer\polhook.dll"
regsvr32 /s "PlayOnlineViewer\unicows.dll"
regsvr32 /s "PlayOnlineViewer\patchfiles\PlayOnlineViewer\view er\com\app.dll"
regsvr32 /s "PlayOnlineViewer\patchfiles\PlayOnlineViewer\view e\com\polcore.dll"
regsvr32 /s "PlayOnlineViewer\polcfg\sysinfo.dll"
regsvr32 /s "PlayOnlineViewer\util\unicows.dll"
regsvr32 /s "PlayOnlineViewer\viewer\ax\MSVCR71.dll"
regsvr32 /s "PlayOnlineViewer\viewer\ax\polmvf.dll"
regsvr32 /s "PlayOnlineViewer\viewer\ax\polmvfINT.dll"
regsvr32 /s "PlayOnlineViewer\viewer\com\app.dll"
regsvr32 /s "PlayOnlineViewer\viewer\com\polcore.dll"
regsvr32 /s "PlayOnlineViewer\viewer\contents\PolContents. dll"
regsvr32 /s "PlayOnlineViewer\viewer\contents\polcontentsINT.d ll"
regsvr32 /s "TetraMaster\TM.dll"
9. execute batfile. It will register all the needed .dll to run ffxi.
10. enjoy the game