This article is intended for Citrix administrators and technical teams only. Non-admin users must contact their company’s Help Desk/IT support team and can refer to CTX297149 for more information.

When several published and non-published apps are launched, the minimized published applications cannot be maximized.

Complete the following steps on the client machine with Receiver to resolve the issue and maximize published applications:

Caution! Refer to the Disclaimer at the end of this article before using Registry Editor.

Note: From CWA for Windows 1912 cu7 ONWARDS and CWA for Windows 2203 onwards there is no need to configure registry in both HKLM and HKCU, either one place is sufficient.

1. Set the TWITaskbarGroupingMode key to the following value in the path HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Seamless Windows
   Name: TWITaskbarGroupingMode
   Type: REG_SZ
   Value: GroupNone

2. Set the TWITaskbarGroupingMode key to the following value in the path HKEY_CURRENT_USER\Software\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Seamless Windows
   Name: TWITaskbarGroupingMode
   Type: REG_SZ
   Value: GroupNone

3. Test the application with a seamless application.

Problem Cause

Seamless Taskbar Grouping of hosted, published applications is not set.

CTX138330 - Error: The licenses required by this edition of Citrix Presentation Server are not present on the license server

Citrix Documentation - TWITaskbarGroupingMode