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I want to create a custom installer for oob applications for Windows and MacOS.

For Windows, I used the following method - https://www.codeproject.com/Articles/179756/Installing-Silverlight-OOB-Application-using-a-Set

For MacOS, the following solution - https://www.blaize.net/2012/04/offline-oob-mac-installation/

These methods work well and create the application, but the application update does not work with them.

In the Silverlight application, I use the following code to update:

private void CheckUpdateApplication()

 if (Application.Current.IsRunningOutOfBrowser)
 
 Application.Current.CheckAndDownloadUpdateAsync();
 Application.Current.CheckAndDownloadUpdateCompleted += Application_CheckAndDownloadUpdateCompleted;
 


private void Application_CheckAndDownloadUpdateCompleted(object sender, CheckAndDownloadUpdateCompletedEventArgs e)

 if (e.UpdateAvailable)
 
 MessageBox.Show(CommonMethod.MessageUpdateApplication);
 
 else if (e.Error != null)
 
 MessageBox.Show(string.Format("0 - 1", e.Error.GetType().Name, e.Error.Message));
 

In the settings of out of browser application, I set the checkbox - "Require elevated trust when running outside the browser". The XAP file is signed with a self-signed certificate.

After installing in Windows, I get the following error when updating:

Exception - Error HRESULT E_FAIL has been returned from a call to a
COM component.

After installing in MacOS, I get the following:

OutOfMemoryException - Error 0x1AA6.