By default 32-bit applications (and installers for 32-bit apps) can only access the 32-bit system folder. You can use the 64bit
flag on various entries to override this, if there is a specific 64-bit file you need to install for a 32-bit application, for example.
You can do the same thing from [Code]
by using the EnableFsRedirection
support function. That help page shows an example of executing the 64-bit command prompt; you can similarly access the 64-bit {sys}
from within that block. Don't forget to restore the previous state afterwards, as shown.
Bear in mind however that renaming an installed driver file is generally not a good idea -- there will be catalog and INF files still pointing to its old name, and the system may get confused by this. It's better to properly uninstall the driver and reinstall the new one.