georgewcato - It's a good idea to move your Trainz installations to your fastest and largest HDD (or SSD) logical drive in any event for better performance and easier backing up.
Accordingly, I'd suggest moving both T:ANE and TRS19 to the larger partition, leaving only the userdata-redirect-map.txt file indicating the paths to your program folders and Userdata folders on the C:\Users\<Username>\Appdata\Local\N3V Games\TANE (and separate folder for TRS19).
The procedure is really simple: Create new empty folders for T:ANE and TRS19 on your D: drive (Are you sure it is called B?) - Example: D:\TANE and D:\TR19.
Then create a new subdirectory inside each of those folders for your Userdata files and folders - preferably descriptively named so that it is easy to back them up and update them in future - so that the path(s) look like this: D:\TRS19\Userdata_trs19 and D:\TANE\Userdata_tane.
Then simply COPY the current contents of your T:ANE and TRS19 program installations over to the correct folders on D: (Use COPY instead of MOVE for now so we can test that all is working correctly in the new location before we delete the programs and their user data from your C: drive later). Do the same for the Local Data Folders for each installation - transfer these to the new subdirectories you created earlier.
(To find exactly where your current UserData folders reside on C:, check the path shown on the Install tab of your Trainz Settings dialog in Launcher for both Trainz versions).
Once you have copied both versions of Trainz over to your larger logical drive, then place the contents of their current UserData folder's files and folders into their respective UserData subdirectory repositories.
Start the Launcher for T:ANE on D: by double-clicking on the TANE.exe executable and go immediately into the settings dialog to set the correct paths, video resolution, Performance preferences, Trainz UID and Password, No. of backups, etc. Afterwards, right-click the executable to create a new shortcut icon for launching T:ANE from your taskbar and/or start menu as preferred.
Do the same for TRS19's 1st-run set-up dialog tabs and create a new shortcut icon to launch this program as well.
Test all of this thoroughly by starting up each of your moved installations and checking to see that all of your content is there and running smoothly.
Only when you are certain that the transfer has been completed successfully (perhaps days later), it will be safe to delete the original folders and files on your C: drive - with the exception of the userdata-redirect-map.txt files in your Users AppData directory on C:, which should now display the new paths to your TRS19 and T:ANE installations on D: (or B:!) as the case may be.
Good luck in this quest.
