The vendor has published 2 unique mention(s) for this bug: 1. With Profile Management 2305 installed, Microsoft Outlook might fail to start with this error message: C:\Program Files\Citrix\User Profile Manager\upmoutlookhook.dll is either not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support. Error status 0xc0000428. 2. With Profile Management version 2305 installed, Outlook fails to launch with the following error message shown: To fix this issue, download and install the Hotfix ProfileMgmt 23.5.100. For more information, see Knowledge Center article CTX559448. Latest urls for this bug: 1. https://docs.citrix.com//en-us/profile-management/2203-ltsr/whats-new/cumulative-update-4/fixed-issues 2. https://docs.citrix.com//en-us/profile-management/2305/whats-new/known-issues