VirtualDAC

Installation

This topic contains the environment changes made by the VirtualDAC installer. If you are having problems using VirtualDAC or compiling VirtualDAC-based applications, check this list to make sure your system is properly configured.

Compiled versions of VirtualDAC can be installed automatically for all supported IDEs except Lazarus. VirtualDAC with Source Code must be installed manually. Installation of VirtualDAC from the source code is described in the ReadmeSrc.html file.

Before installing VirtualDAC

Two versions of VirtualDAC cannot be installed in parallel for the same IDE, and, since the Devart Data Access Components products have some shared bpl files, newer versions of VirtualDAC may be incompatible with older versions of ODAC, IBDAC, SDAC, MyDAC, PgDAC, LiteDAC and UniDAC.

So before installing a new version of VirtualDAC, uninstall all previous versions of VirtualDAC you may have, and check if your new install is compatible with other Devart Data Access Components products you have installed. For more information, see Using several products in one IDE. If you have any questions, send us an email at [email protected].

Note: You can avoid uninstalling VirtualDAC manually when upgrading to a new version by overwriting the previous version. To do this, run the installer from the command line with the /force parameter (Start | Run and type virtualdacXX.exe /force, specifying the full path to the appropriate version of the installer.

Installed packages

Note: %VirtualDAC% denotes the path to your VirtualDAC installation directory.

Delphi/C++Builder Win32 project packages

Name Description Location
dacXX.bpl DAC runtime package Windows\System32
dcldacXX.bpl DAC design-time package Delphi\Bin
dacvclXX.bpl DAC VCL support package Delphi\Bin
vqueryXX.bpl DAC runtime package Windows\System32
dclvqueryXX.bpl DAC design-time package Delphi\Bin

Environment Changes

To compile VirtualDAC-based applications, your environment must be configured to have access to the VirtualDAC libraries. Environment changes are IDE-dependent.

For all instructions, replace %VirtualDAC% with the path to your VirtualDAC installation directory

Delphi

The VirtualDAC Installer performs Delphi environment changes automatically for compiled versions of VirtualDAC.

C++Builder

C++Builder 6:

C++Builder 2006, 2007:

The installer performs C++Builder environment changes automatically for compiled versions of VirtualDAC.

Lazarus

The installer only copies VirtualDAC files. You need to install VirtualDAC packages to the Lazarus IDE manually. Open %VirtualDAC%\Source\Lazarus1\dclvquery10.lpk in Lazarus and click Install. Lazarus will be rebuilded with VirtualDAC packages.

Do not click Compile for the package. Compiling will fail because there are no VirtualDAC source code files.

To verify your environment has been properly configured, try to compile one of the VirtualDAC demo projects which can be found in %VirtualDAC%/Demos.

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