Newer windows builds changed the value of Id/SourceAppUserModelId

[DubyaDude]

Within newer Windows builds, SourceAppUserModelId is no longer the executable name.
I'm aware of a handful of applications that depend on the executable name or process ID. Should add a helper method to ease this frustration.

[DubyaDude]

I did attempt to try to get the Process from the AppUserModelId provided with the following:

    public static class Utilities
    {
        public static int GetProcessId(string sourceAppUserModelId)
        {
            var allProcessIds = Process.GetProcesses().ToList();

            // @DEBUG
            List<(string, int)> AllFunNames = new List<(string, int)>();

            foreach (var process in allProcessIds)
            {
                string sResult = null;
                IntPtr ptrProcess = IntPtr.Zero;
                ptrProcess = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, false, process.Id);

                if (IntPtr.Zero != ptrProcess)
                {
                    uint cchLen = 130; // Currently APPLICATION_USER_MODEL_ID_MAX_LENGTH = 130
                    StringBuilder sbName = new StringBuilder((int)cchLen);
                    Int32 lResult = GetApplicationUserModelId(ptrProcess, ref cchLen, sbName);
                    if (ERROR_SUCCESS == lResult)
                    {
                        sResult = sbName.ToString();
                    }
                    else if (ERROR_INSUFFICIENT_BUFFER == lResult)
                    {
                        sbName = new StringBuilder((int)cchLen);
                        if (ERROR_SUCCESS == GetApplicationUserModelId(ptrProcess, ref cchLen, sbName))
                        {
                            sResult = sbName.ToString();
                        }
                    }
                    CloseHandle(ptrProcess);

                    // @DEBUG
                    if (sResult != null)
                    {
                        Console.WriteLine("SUCCESS GetApplicationUserModelId - " + process.ProcessName + " (" + process.Id + ") " + sResult);
                    }
                    else
                    {
                        Console.WriteLine("FAIL GetApplicationUserModelId - " + process.ProcessName + " (" + process.Id + ")");
                    }
                }
                else // @DEBUG
                {
                    Console.WriteLine("FAIL OpenProcess - " + process.ProcessName + " (" + process.Id + ")");
                }

                // @DEBUG
                if(sResult != null)
                {
                    AllFunNames.Add((sResult, process.Id));
                }

                if (sResult == sourceAppUserModelId)
                {
                    return process.Id;
                }
            }

            return -1;
        }

        const int PROCESS_QUERY_LIMITED_INFORMATION = 0x1000;
        const int ERROR_INSUFFICIENT_BUFFER = 0x7a;
        const int ERROR_SUCCESS = 0x0;

        [DllImport("kernel32.dll")]
        internal static extern IntPtr OpenProcess(int dwDesiredAccess, bool bInheritHandle, int dwProcessId);

        [DllImport("kernel32.dll")]
        static extern bool CloseHandle(IntPtr hHandle);

        [DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
        private static extern int GetApplicationUserModelId(IntPtr hProcess, ref uint applicationUserModelIdLength, StringBuilder applicationUserModelId);
    }

However, it currently only seems to be able to query Windows UWP apps. Though this may also be because of me running on Windows 11 IOT, more testing & research is needed on how this new ID is obtained.

[DubyaDude]

Found what I believe to be the solution:

Will need to query Windows regarding the AppId, probably through PowerShell, using Get-StartApps.
Will look into creating a utility package to include easy methods for this.

Source: https://stackoverflow.com/a/71889808