Gif Animation XAML C# Paused

Question

I am using How do I get an animated gif to work in WPF? in my program.

Initially in XAML, I set Visibility="Hidden" and

use animateImage.Visibility = Visibility.Visible; when I want the image to display.

After dispalying the image, I run a process. However, as soon as the process starts, the animation pauses. I wonder why is it doing that?

I was thinking to create a new thread and run GIF in the thread, and close the thread when process is completed.

EDIT

Code for the process that I am running. I want the animation to play during the GPUpdate.

ExecProc("gpupdate", "/force");

private static bool ExecProc(string file, string arg)
{
    bool flag = true;
    try
    {
        //Create a new process info structure.
        ProcessStartInfo pInfo = new ProcessStartInfo();
        pInfo.FileName = file;
        pInfo.CreateNoWindow = true;
        pInfo.Arguments = arg;
        pInfo.WindowStyle = ProcessWindowStyle.Hidden;

        Process ps = new Process();
        ps.StartInfo = pInfo;
        ps.Start();

        //Wait for the process to end.
        ps.WaitForExit();
    }
    catch (Exception e)
    {
        writeLog("Error: " + e + " running " + file + " " + arg);
        flag = false;
    }
    return flag;
}

Answer 1

Mohammad Dehghan was really helpful and got me in the right direction. However, I was looking something slightly different, so posting what ended up with.

It goes and executes the process while other stuff is keep running in the background.

animateImage.Visibility = Visibility.Visible;
    await Task.Run(() =>
    {
        // Process goes here
    });
animateImage.Visibility = Visibility.Hidden;