• In some scenarios you may wish to open a Microsoft Access database form as full screen mode or Kiosk Mode.  
• In RDP or local Console this form will fill the full screen including the taskbar
• Running Access as a published application, the form will not fill the full screen and will show the taskbar

Solution:

• You will need to set a seamless flag to target the Window Classname of the form that needs to fill the screen
• The seamless flag that needs to be set is : “Disable MM Window Region Fit” 0x00020000

To set this flag:

• Please download the Citrix CAX Tool from : https://support.citrix.com/article/CTX222592 and place on your VDA Server
• Find out the form Parent Class by using Windows history tool: https://support.citrix.com/article/CTX109235

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• ​Set the CAX Tool Per Window Class setting to point to the classname as example below :

Problem Cause