Launch Citrix Desktops and Applications in Windowed Mode

This post explains how to launch Desktops and Applications in Windowed Mode using specific resolutions or a percentage of the screen.

By default when we launch applications and desktops they launch seamlessly as if running on the local endpoint. If applications and/or desktops behave in a way were seamless does not suit, you may want to consider launching those problematic resources in Windowed Mode instead.

Launching in Windowed Mode is easy and can be set up per resource. You can either define a static resolution or define a percentage of the screen.

On your StoreFront server(s), navigate to C:\inetpub\wwwroot\Citrix\CitrixStore\App_Data.

Note: Your path will be different depending on your Store name.

Now launch default.ica in a text editor.

To set a specific resolution underneath Application= type in brackets [] the name of your application as displayed in Citrix Studio. Underneath type the [Application] name type:




The resolution is up to you.

Save the default.ica file. The next time youu launch a resource it will display as below in Windowed Mode:

To set the Windowed Mode as a percent of the screen, replace DesiredHRES= and DesiredVRES=with ScreenPercent=. This works well especially for published desktops.


  • Nirmal

    October 26, 2017

    How to change Desktop Viewer screen percentage? which is 75% by default

    • George Spiers

      October 27, 2017

      You want to set it to 75%? Does using ScreenPercent= not work?

      • Adam

        October 27, 2017

        No screenpercent doesn’t work, I am trying to get my shared desktop to be at 95% an It keeps launching at about 75% instead


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