How to make C# app for taskbar to display messages

I have a restaurant WINFORM app , and its connected to website for online orders. I want to notify user if there is any new online order.

However I tried using on same C# app with timer , but its slowing and sometime freezes the whole app.

So now I have decided to make another app just to check if theirs any new order, however I want it to stick to taskbar as a message board which blinks and if possible displays

"Online pending order : 02" .

I am able to make it Blink in taskbar by changing the icons by using timer, if new online order.

So let me know if its possible.

Thanks