[THEBERBSTER]

Hi steevo
When you complete the STEAM conversion to your new location make sure your SH3.exe is set as an administrator.
Do not download in to your "SilentHunter3" folder as this will be your main game folder.
You should be able to download LSH3-2015 to any folder of your choosing I would suggest a new folder., let's call it for instance "LS3 Download"

This folder is only the download folder for the LSH3-2015 zip file.
When downloaded go to properties and make sure it is not showing "read only" ticked.
When you open the zip file and select "Extract" it will want to extract to the "LSH3 Download" folder which is what you want.
You will now see all the related files for the game.
Clicking on the application you should be able to browse to where your game folder is which for you is "SilentHunter3" it is at this point it should show a valid SH3.exe.
If you still have a problem you can check this out by starting the game SH3.exe.
If the game loads to the menu exit to the desktop and you know you have a working game.
If it does not then your STEAM conversion is at fault.
Check this out:
How To Move STEAM From The Program Files (x86) Directory To A New Folder By propbeanie > STEAM User Information

Post #7 Steam Conversion SH4 Installation Instructions > STEAM user Information

Peter