Calling exe on network drive

[GrahamL]

Hi
I am trying to call an exe on a network drive

d = "x:\\\RequirmentsEditorInstall.exe"
subprocess.run([d,
                     '/silent',
                     ])

When this runs I get the following

Traceback (most recent call last):
  File "C:\Azure Devops\Agents\TPG\_work\_temp\6f42d270-a33f-46f5-adb5-9ac9afd9a6c0.py", line 22, in <module>
    subprocess.run([d,
  File "C:\Program Files\Python310\lib\subprocess.py", line 501, in run
    with Popen(*popenargs, **kwargs) as process:
  File "C:\Program Files\Python310\lib\subprocess.py", line 966, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "C:\Program Files\Python310\lib\subprocess.py", line 1435, in _execute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified

##[error]The process 'C:\Program Files\Python310\pythonw.exe' failed with exit code 1
Finishing: Produce Requirements Editor Reports

If I execute the command manually it succeeds

What am I doing wrong?