Thunderbird portable.Windows XP

Good Day All.
Thunderbird portable.Windows XP
Using POP3.
I travel between two locations.
I have a Windows 10 64bit desktop at each location.
I have Thunderbird Portable on a Thumb Drive.
At each location I just plug in the Thumb Drive and launch Thunderbird portable.
Has worked well.
I also update the local machine at each location with SyncToy by syncing the “Mail” folder.
Two days ago when I arrived at one of the locations, my Desktop died shortly after boot-up.
DEAD!!
I pulled out an old XP 32bit laptop and tried to launch Thunderbird off the thumb Drive.
It would not launch.
I suspect the version on the Thumb Drive is 64 bit.
I found and installed Thunderbird Portable 32bit V5 n the XP laptop.
I copied ALL of the Profile contents on the Thumb drive to the Profile folder on the Laptop
(Thunderbird Portable) as per:

https://portableapps.com/support/thunderbird_portable#local_profile

“Copying Your Local Thunderbird Settings

If you're using a local copy of Thunderbird, you may wish to just copy your local
Thunderbird settings right into Thunderbird Portable. Your local Thunderbird profile is
usually installed in C:\Documents and Settings\[user]\Application
Data\Thunderbird\Profiles\default.???\ or C:\Users\[user]
\AppData\Thunderbird\profiles\default.???. Just copy all of those files to the Data\profile
directory within Thunderbird Portable. Sometimes, certain profiles will cause the launcher
to fail or hang. In that case, start from scratch and try just copying your mailstores
(Mail and ImapMail directories) as well as your prefs.js and abook.mab files.”

Did not work.
I then tried just copying the Mail folder, Address Book and the prefs.js to the Profile
folder on the laptop. (after restoring just the original files from the install to the
Profile folder)
After launch:
It found the address Book but the Mail folders and the Accounts are still missing.
I tried messing with the prefs.js from the thumb drive and too many variations to mention.
As a note, there are three prefs.js files on the Thumb Drive.
prefs.js
prefs-1.js
prefs-2.js
I just cannot get Thunderbird Portable to work on the XP laptop.
It will not launch using the “Platform” either.
I am now really in a bind as I really need Thunderbird because I monitor some 12 POP3
accounts.

Any ideas?