Delphi Users Security Component Flexible Enterprise-Grade TUsers Security Component for VCL on Windows Authentication

 https://blogs.embarcadero.com/flexible-enterprise-grade-tusers-security-component-for-vcl-on-windows/
Enterprise Grade  Users Security Component
https://www.tmssoftware.com/site/tmsvclsecuritysystem.asp
http://www.toolsandcomps.com/ing/products_tusers_v2x.html

https://torry.net/components/security/user-rights/

componentsource Security Components  VCL Delphi

https://docs.hydra4.com/Samples/SecuritySample/
 
https://www.devart.com/dac.html
Data Access Components for Delphi, C++Builder, and Lazarus
https://github.com/HemulGM/Components
HemulGM/Components: HGM components for Delphi

 ru.stackoverflow. gui - Delphi мессенджер. Какие компоненты использовать? - Stack Overflow на русском

https://www.drbob42.com/blog/index.htm

 
Знающие Создание собственного формата буфера обмена delphi
Создание собственного формата буфера обмена
Creating your own clipboard format
http://pro.dtn.ru/delphi-net/obmen-5.html