0x8002801c is TYPE_E_REGISTRYACCESS, meaning you had no rights to update the registry.
You need to start a command window as Administrator (so oly being logged ina as administrator is not enough!),
and then call regsvr32 "c:\Windows\SysWOW64\MSFLXGRD.OCX".
I found data on net , but Im not sure how do this in Windows 11?
Thanks
"c:\Windows\SysWOW64\MSFLXGRD.OCX".ndows\SysWOW64\MSFLXGRD.OCX"