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Dear Forum Members, I've been using the o2cPlayer.ocx (1.9.9.165 - 32bit) component in my projects since Delphi 6 and have not had a problem until RAD Studio 11.1 (I'm running 11.2 Patch 1). It works in RAD Studio 11.0 and 10.4 Update 2. After installing the component, when I try to place the control on a new form, Delphi hangs for a moment, then the program closes without an error. The same behavior occurs if I create a C++ package and try to place the component on a C++ project form. I've been able to replicate this problem with a clean installation of RAD Studio 11 on two different Windows 11 Pro machines and a Windows 10 Pro computer. Embarcadero Support has been giving me suggestions over the past few weeks but none of them have worked. They have not been able to reproduce the error in-house. I'd appreciate any suggestions or confirmation that this is a new issue with RAD Studio 11. To resolve the issue, I've tried recreating and installing the component after... Deleting the registry node HKEY_CURRENT_USER\SOFTWARE\Embarcadero\BDS\22.0. Running RAD Studio 'As Administrator'. Creating a new Administrator account on my local machine and logging in as that user. Deleting C:\Users<user name>\AppData\Roaming\Embarcadero\BDS\22.0. I also looked at Windows Controlled Folder Access but it is not accessible because Norton or Bitdefender are running. Thank you for any assistance you may be able to provide. MFM O2CPlayer.zip