C#•2y ago

System.ComponentModel.Win32Exception: 'Access is denied'

Hi guys, hope you're all doing well
I'm working on a project, which needs to

start

start

start

start and

kill

kill

kill

kill some proccesses,
the issue is an

excception

excception

excception

excception always thrown when try to kill processes, and the exception always said :

System.ComponentModel.Win32Exception: 'Access is denied'

This is the file I have issue in :
https://github.com/MbarkT3STO/OfficeDRPC/blob/main/OfficeDRPCCommander/Worker.cs

The exception always happens in this part :

process[0].Kill();

process[0].Kill();

process[0].Kill();

process[0].Kill();

All the apps including the app which contains the issue are

Console

Console

Console

Console targetting

.NET Framework 4.7.2

.NET Framework 4.7.2

.NET Framework 4.7.2

.NET Framework 4.7.2

Please any help or solution for this issue ?

Massive thanks in advance, with all love and respect <3

GitHub

OfficeDRPC/OfficeDRPCCommander/Worker.cs at main · MbarkT3STO/Offic...

Open-source project to show Discord Rich Presence Activities for most of Microsoft 365/Office apps - MbarkT3STO/OfficeDRPC

SpReeD•4/4/24, 10:49 AM

As the excpetion says Access deniedAccess denied, meaning whoever starts your application don't have the permission to kill the other application. Your chance is to run your application with elevated privileges.

M B V R KOP•4/4/24, 11:44 AM

What the solution then, please ?

M B V R KOP•4/4/24, 11:45 AM

Your chance is to run your application with elevated privileges

You means Run as AdministratorRun as Administrator ?

SpReeD•4/4/24, 11:50 AM

I do

M B V R KOP•4/4/24, 11:51 AM

I did it for the .exe.exe of the app but still the same issue also I run the Visual StudioVisual Studio as AdministratorAdministrator but the same issue

SpReeD•4/4/24, 12:07 PM

Well, are you trying to kill a Windows ServiceWindows Service ran by local system accountlocal system account ?
Next question, why are you trying to

kill

kill

your own process?
It would be better to use an IPC to communicate with your very own processes or implement a WatcherWatcher inside each DRPC.
On the other hand, use a real WorkerWorker or ServiceService template instead of a console application.

SSpReeD Well, are you trying to kill a `Windows Service` ran by `local system account` ?...

M B V R KOP•4/4/24, 12:09 PM

I try to kill my services when there is no need to use them, and for realeasing/free up thier holded resources (RAM, CPU)

M B V R KOP•4/4/24, 12:10 PM

Daaaaamn, I remember somthing, I have COMODO FirewallCOMODO Firewall on my pc and I set my DRPCDRPC apps as Windows applicationsWindows applications, is there could be a cause of the issue ?

SpReeD•4/4/24, 12:16 PM

I'm not familiar with COMODO, but inter-process-communication lets you communicate programmatically with your application/processes, so you could send a shutdown command and the application could exit in a normal manner, instead being killed from the outside.
This could also be achieved by using a WatcherWatcher inside each DRPC, for instance, in ExcelDRPC, if excel not running Environment.Exit(0)Environment.Exit(0).
Besides this, your project could be a single Windows ServiceWindows Service monitoring all of the Applications you want; also it would be easier to determine if there's already another application, of your monitored applications, opened and sent to discord.

SpReeD•4/4/24, 12:21 PM

Monitoring processes on WindowsWindows OS, can be done either through TimersTimers or using WMIWMI and the specific built-in classes like ManagementEventWatcherManagementEventWatcher. See: https://learn.microsoft.com/en-US/dotnet/api/system.management.managementeventwatcher?view=netframework-4.7.2

ManagementEventWatcher Class (System.Management)

Subscribes to temporary event notifications based on a specified event query.

SpReeD•4/4/24, 12:24 PM

The specific WQLWQL would be something like
ManagementEventWatcher(new WqlEventQuery("SELECT * FROM Win32_ProcessStartTrace"))ManagementEventWatcher(new WqlEventQuery("SELECT * FROM Win32_ProcessStartTrace")) and
ManagementEventWatcher(new WqlEventQuery("SELECT * FROM Win32_ProcessStopTrace"))ManagementEventWatcher(new WqlEventQuery("SELECT * FROM Win32_ProcessStopTrace"))
for a process being started and stopped.

SSpReeD The specific `WQL` would be something like `ManagementEventWatcher(new WqlEventQ...

M B V R KOP•4/4/24, 1:40 PM

Massive thanks I really appreciate your time and help,

M B V R KOP•4/4/24, 1:40 PM

I don't even knowwhy I didn't make them work as a single app

M B V R KOP•4/4/24, 1:40 PM

that looks a good idea