Repository: PowerShell/PowerShell
File: src/Microsoft.PowerShell.Commands.Management/commands/management/Service.cs (C#)

Code before:
                );
                if (hService != nint.Zero)
                {
                    if (NativeMethods.QueryServiceConfig2(
                        hService,
                        NativeMethods.SERVICE_CONFIG_DESCRIPTION,
                        out NativeMethods.SERVICE_DESCRIPTIONW descriptionInfo))
                    {
                        description = descriptionInfo.lpDescription;
                    }

                    if (NativeMethods.QueryServiceConfig2(
                        hService,
                        NativeMethods.SERVICE_CONFIG_DELAYED_AUTO_START_INFO,
                        out NativeMethods.SERVICE_DELAYED_AUTO_START_INFO autostartInfo))
                    {
                        isDelayedAutoStart = autostartInfo.fDelayedAutostart;
                    }

                    if (NativeMethods.QueryServiceConfig(
                        hService,
                        out NativeMethods.QUERY_SERVICE_CONFIG serviceInfo))
                    {
                        binPath = serviceInfo.lpBinaryPathName;
                        startName = serviceInfo.lpServiceStartName;
                        startupType = NativeMethods.GetServiceStartupType(
                            (ServiceStartMode)serviceInfo.dwStartType,
                            isDelayedAutoStart);
                    }
                }
            }
            finally
            {
                if (hService != IntPtr.Zero)
                {
                    bool succeeded = NativeMethods.CloseServiceHandle(hService);
                    Diagnostics.Assert(succeeded, "Failed to close service handle");
                }
            }

            PSObject serviceAsPSObj = PSObject.AsPSObject(service);
            PSNoteProperty noteProperty = new("UserName", startName);
            serviceAsPSObj.Properties.Add(noteProperty, true);
            serviceAsPSObj.TypeNames.Insert(0, "System.Service.ServiceController#UserName");

            noteProperty = new PSNoteProperty("Description", description);
            serviceAsPSObj.Properties.Add(noteProperty, true);
            serviceAsPSObj.TypeNames.Insert(0, "System.Service.ServiceController#Description");

            noteProperty = new PSNoteProperty("DelayedAutoStart", isDelayedAutoStart);
            serviceAsPSObj.Properties.Add(noteProperty, true);

Review comment (suggestion):
This method should only be called when the call to `QueryServiceConfig2(..., out var autostartInfo)` returns true. Or, once `isDelayedAutoStart` has `null` as the default value, call this method only if `isDelayedAutoStart is not null`.

Code after:
                );
                if (hService != nint.Zero)
                {
                    if (NativeMethods.QueryServiceConfig2(
                        hService,
                        NativeMethods.SERVICE_CONFIG_DESCRIPTION,
                        out NativeMethods.SERVICE_DESCRIPTIONW descriptionInfo))
                    {
                        description = descriptionInfo.lpDescription;
                    }

                    if (NativeMethods.QueryServiceConfig2(
                        hService,
                        NativeMethods.SERVICE_CONFIG_DELAYED_AUTO_START_INFO,
                        out NativeMethods.SERVICE_DELAYED_AUTO_START_INFO autostartInfo))
                    {
                        isDelayedAutoStart = autostartInfo.fDelayedAutostart;
                    }

                    if (NativeMethods.QueryServiceConfig(
                        hService,
                        out NativeMethods.QUERY_SERVICE_CONFIG serviceInfo))
                    {
                        binPath = serviceInfo.lpBinaryPathName;
                        startName = serviceInfo.lpServiceStartName;
                        if (isDelayedAutoStart.HasValue)
                        {
                            startupType = NativeMethods.GetServiceStartupType(
                                (ServiceStartMode)serviceInfo.dwStartType,
                                isDelayedAutoStart.Value);
                        }
                    }
                }
            }
            finally
            {
                if (hService != IntPtr.Zero)
                {
                    bool succeeded = NativeMethods.CloseServiceHandle(hService);
                    Diagnostics.Assert(succeeded, "Failed to close service handle");
                }
            }

            PSObject serviceAsPSObj = PSObject.AsPSObject(service);
            PSNoteProperty noteProperty = new("UserName", startName);
            serviceAsPSObj.Properties.Add(noteProperty, true);
            serviceAsPSObj.TypeNames.Insert(0, "System.Service.ServiceController#UserName");

            noteProperty = new PSNoteProperty("Description", description);
            serviceAsPSObj.Properties.Add(noteProperty, true);
            serviceAsPSObj.TypeNames.Insert(0, "System.Service.ServiceController#Description");