Delphi XE4 cannot install design package (vcl) for 64bit configuration

Question

I've installed XE4 on a 64bit Windows 7. All my design packages can be compiled/installed in 32bit configration. If I switch configuration to 64bit, the "Install" and "Uninstall" commands will disappear from context menu.

It is weird, can someone know the reason?

Answer 1

The Delphi IDE is a 32 bit app and so there are no 64 bit design time packages. Simply put, there is nothing into which a 64 bit design time package can be installed.

Of course, for run time packages, you can compile and use both 32 and 64 bit versions.