Struggling with Windows common controls

Hello,

I am providing to regular users an app that use Windows common controls (comdlg32.ocx, MSCOMCTL.OCX..).

Can I assume that Windows common controls (comdlg32.ocx, MSCOMCTL.OCX..) exist And are registered in clients computers (Win7 and Win10) or should I provide and register them during the app installation?

If so, is there a way that even standard users without admin rights could register these controls?

Thanks for any clarification
Avi