It doesn't matter where you place the App, it matters what
Path you tell it to use to do it's thing.
I've got my LAA placed directly in my C:/ drive....Putting it in your Programs folder of the D:/ drive shouldn't matter.
If you've opened the LAA app, you should find its first page looking something like this:
On this computer, I've got LAA helping on two different games I use. Notice on the right side where it states "LAA" and the parameters read "True" for both......this means LAA is loaded for both games.
If it doesn't show that your Path to wherever you've installed the game is correct, or you don't have the "True" parameter for the game, then something is wrong with your effort to install LAA. I'd try reading the instructions again, and do it over.
Also, the SH4.exe file needs to be checked to make sure a parameter there is correct. The original SH4.exe usually has the "Attributes" set as "Read-only" as default:
You need to have the Read-only parameter un checked before having the LAA app work. So, check this first and "Apply" the change before adding the LAA to the game's SH4.exe file.
As a further thought, if you use a "Shortcut" of the sh4.exe file to start the game from your Desktop, make sure the Shortcut is made
AFTER you've added the LAA to the .exe. The Shortcut only mirrors the original. If you change the game's .exe (which you will if LAA is used), delete the older Shortcut, and make a new one for the Desktop once you see everything is as I've described.
Do not add LAA to the Shortcut...it goes directly into the games original .exe file.
I'm heading out now for the evening, I suggest you get the LAA working as expected. Then load just TMO 2.5; the OTC mod for TMO 2.5; the proper optical correction mod for your game resolution (16:9 Aspect Ratio); and the 3000 meter/yard Bearing Tool (1920). You can add the Metric Tools mod of OTC if you prefer to play that way
That's it, no other mods. Not the TMO_25_small_patch or the IJN_Rad_Fix_for_TMO2_betaupdate....then see what you have?