Uninstall previous installed version of RX Library from Delphi 5 IDE.
Remove previously compiled RX packages (if any) RXCTL5.BPL, RXDB5.BPL,
RXBDE5.BPL, DCLRX5.BPL, DCLRXDB5.BPL and DCLRXBD5.BPL from your hard disk.
If you have Delphi 5 Professional or Standard Edition, deactivate the
conditional define {$DEFINE DCS} in the RX.INC file before compiling the
library.
Use "File\Open..." menu item of Delphi IDE to open RX' runtime
package RXCTL5.DPK. In "Package..." window click "Compile" button to
compile packages RXCTL5.DPK. After compiling repeat that for other RX
Library run-time packages RXDB5.DPK, RXBDE5.DPK. Put compiled BPL files
into directory that is accessible through the search PATH (i.e. DOS
"PATH" environment variable; for example, in the Windows\System directory).
After compiling RX run-time packages you must install RX design-time
packages into the IDE.
Use "File\Open..." menu item to open RX design-time package DCLRX5.DPK.
In "Package..." window click "Compile" button to compile the package
and then click "Install" button to register RX Library components on
the component palette. Repeat that for other RX Library design-time
packages DCLRXDB5.DPK and DCLRXBD5.DPK.
NOTE: do not save package sources in the Delphi IDE.
如果还不行,安完后,在TOOLS->Enviroment Option->Library->library path下输入.dcu的路径。
例如:C:\Program Files\Borland\Delphi5\RX\Units