Modifying Wrappers/Registry hijacking

1) Registry Override (Changing Which Program Runs)
Idea: Instead of calling GoogleDriveFS.exe (with --open_gdoc), you point the registry to a different program or script that receives the same arguments, then decides what to do.

High-Level Steps:

Rename / Move the Original Program
Move or rename the real GoogleDriveFS.exe to something else, e.g. GoogleDriveFS_real.exe.

Create a “Wrapper”
Write a small script (e.g., a batch file or custom .exe) with the same filename (GoogleDriveFS.exe) in the original location.
This wrapper intercepts --open_gdoc="%1", does something custom, then optionally calls the real executable if you still want normal functionality.

Edit the Registry
Update the registry key that references GoogleDriveFS.exe --open_gdoc="%1" so it remains the same name, but now your wrapper is the actual file in that path. This means whenever .gdoc is opened, your wrapper sees --open_gdoc="%1" first.

In your wrapper, you might do something like:

batchCopyEdit@echo off
REM Example: Wrapper around the real GoogleDriveFS, intercepting or altering arguments

REM 1) Parse the %* for --open_gdoc=someFile.gdoc
SETLOCAL ENABLEDELAYEDEXPANSION
SET newArgs=
:parseArgs
IF "%~1"=="" GOTO runReal
IF "%~1"=="--open_gdoc=" (
    REM (not likely literal because there's always a path after the equals)
) ELSE (
    REM If you want to manipulate the argument, do so here:
    REM e.g., "some transformation or logging"
)
SHIFT
GOTO parseArgs

:runReal
REM 2) Optionally call the original exe if you want normal Google Docs behavior
"C:\Program Files\Google\Drive File Stream\GoogleDriveFS_real.exe" %newArgs%

REM or do something else entirely
EXIT /B 0

That’s a simplistic example for a .bat, but you could do the same with a compiled .exe.

This approach means you’re hijacking the entire workflow. Windows sees .gdoc → runs your wrapper → your wrapper sees the --open_gdoc="%1" argument → does custom logic → optionally hands it off to the real GoogleDriveFS if you still want normal docs behavior.