Software executed using subprocess.Popen() or os.system() may encounter errors due to DLLs.

[nozomichi00]

Bug report

The following two lines of code execute the software, but the software fails midway due to a missing DLL: "Failed to execute 'regsvr32 /s CommonEvent.dll'".

subprocess.Popen('C:\\BackUp\Backup.exe', shell=True)

os.system('C:\\BackUp\Backup.exe')

When manually executing C:\BackUp\Backup.exe, the program runs and completes its task without issue. I have looked for a solution but have not been able to find the cause of the problem. I would appreciate any help.

Your environment

OS: Windows10
Python 3.11.0

[eryksun]

Are you running 32-bit Python? Are you running the app distribution of Python from the Microsoft Store? Where is "CommonEvent.dll" located?

[nozomichi00]

Thank you for your help. I used auto-py-to-exe to package the following items, but this error occurred when running in the Windows 10 environment.
https://github.com/nozomichi00/AutoSoftwareUpgradeTool

Are you running 32-bit Python?
→ I am running on Windows 10 x64 environment.

Where is "CommonEvent.dll" located?
→ This file is located at C:\XXXX\Bin, which is not a default location for Windows files.
→ I am truly sorry that I am unable to provide you with this file.

I have been self-learning to code for half a year, and I think I lack basic knowledge.
In manual execution, C:\BackUp\Backup.exe can use "CommonEvent.dll".
I think there is a difference between using Python's subprocess.Popen() and os.system() and manually starting it, but I don't know where the difference is.

I would appreciate it if you could provide me with some clues. Thank you very much.

[nozomichi00]

I have found that the subprocess.Popen() and os.system() functions in Windows 10 may have difficulty obtaining the highest privileges.
However, I have not yet found a solution to this problem...