To use the Borland Database Engine (BDE) with RAD Studio 10.2 Tokyo, you must perform a manual installation because the BDE is no longer included in the standard IDE setup. While the engine is deprecated and superseded by technologies like FireDAC, an official external installer remains available for developers maintaining legacy systems. 1. Downloading the BDE Installer for 10.2 Tokyo
Embarcadero provides a dedicated installer specifically for each RAD Studio version. To find the one for 10.2 Tokyo:
Official Portal: Access the Embarcadero Registered Users site.
ID Search: Search for Download ID 30752, which is the verified BDE Installer for RAD Studio 10.2 Tokyo.
Requirements: You must have a registered license for RAD Studio, Delphi, or C++Builder 10.2 Tokyo to access this download. 2. Installation Steps
Once you have the BDEInstaller.exe (or similar), follow these steps to integrate it with your IDE:
Run the Installer: Execute the downloaded file with administrator privileges.
IDE Recognition: The installer should automatically detect your 10.2 Tokyo installation paths.
Manual Component Registration: If the BDE components (TTable, TQuery, etc.) do not appear in your Tool Palette, you must install the design-time package manually: Open RAD Studio 10.2 Tokyo. Navigate to Component > Install Packages.
Click Add and browse to your binary directory (typically C:\Program Files (x86)\Embarcadero\Studio\19.0\bin). BDE Installer For RAD Studio- Delphi- C Builder 10.2 Tokyo
Select the file dclbde250.bpl (the 250 suffix corresponds to the Tokyo version). 3. Post-Installation Configuration
After installation, you may need to use the BDE Administrator (bdeadmin.exe) to manage aliases and system settings:
Windows 10/11 Compatibility: Run the BDE Administrator as an Administrator to ensure it can save changes to the registry and the IDAPI32.CFG file.
Shared Memory: If you encounter "Insufficient memory" errors, adjust the SHAREDMEMSIZE in the BDE Administrator under Configuration > System > INIT. 4. Why Use the BDE in 2026?
The BDE is officially deprecated and does not support modern features like Unicode or 64-bit architecture. It is strictly used for:
Installing Component Packages - RAD Studio - Embarcadero DocWiki
The advanced installer will automatically:
C:\Program Files (x86)\Embarcadero\Studio\19.0 (RAD Studio 10.2’s root).HKEY_CURRENT_USER\Software\Borland\BDE..bpl packages to the IDE’s Bin folder.While the BDE works on Windows 10 and 11 (which 10.2 Tokyo supports), it is unsupported and unmovable. Embarcadero will not fix BDE bugs. Use this installer to buy time, not as a permanent architecture.
Plan your migration. Start moving those TTable components to FireDAC (which is built into 10.2 Tokyo) or a modern ORM. The BDE Installer is a bridge, not a destination. To use the Borland Database Engine (BDE) with
The “BDE Installer for RAD Studio- Delphi- C++ Builder 10.2 Tokyo” is not a new driver or emulation layer; rather, it is a specialized setup package that correctly integrates the legacy BDE engine into the Windows registry and the RAD Studio environment. It typically includes several critical components:
IDAPI32.DLL, IDR20009.DLL, BDESETUP.EXE, and the BDE Administrator (BDEADMIN.EXE).IDAPI.CFG file storing alias definitions, driver parameters (buffer size, language drivers, etc.).HKEY_LOCAL_MACHINE\SOFTWARE\Borland\Database Engine that point to installation paths and configuration settings.Unlike older versions (Delphi 7, 2007), RAD Studio 10.2 Tokyo does not include BDE in its default installation. Hence, the BDE installer is a third-party or community-provided solution that restores this functionality.
RAD Studio 10.2 Tokyo (released in March 2017) was a landmark release. It brought 64-bit compiler enhancements, a modern look-and-feel, and high-DPI support. However, Microsoft also changed the rules for legacy components.
The original BDE installer from the 1990s fails on modern Windows for three reasons:
install.exe contains 16-bit code that Windows 10/11 64-bit cannot execute.Wow6432Node incorrectly.IDAPI32.DLL and BDEADMIN.EXE that conflict with Windows security protocols.This is precisely why a dedicated BDE Installer for RAD Studio 10.2 Tokyo is essential. It bypasses the legacy pitfalls and properly registers the engine with the 10.2 Tokyo IDE.
RAD Studio 10.2 Tokyo holds a unique position. It is the last version that fully supports the Classic Borland Compiler (BCC32) alongside the newer Clang-enhanced compiler. If you have BDE components (TDatabase, TTable, TQuery) on a form, 10.2 Tokyo is the most stable modern IDE to support them without rewriting your data module.
Crucial Note: By 10.3 Rio, the BDE installer became a purely community-maintained artifact. In 10.2, the official (though hidden) support still exists.
The BDE Installer for RAD Studio, Delphi, C++ Builder 10.2 Tokyo is more than a historical curiosity—it is a practical lifeline for organizations with deeply entrenched legacy database systems. By enabling the long-obsolete Borland Database Engine to function within a modern Windows 10/11 IDE, the installer allows developers to preserve business logic, maintain compliance, and avoid catastrophic data migration costs. Yet, it is not a permanent solution. As 64-bit computing becomes ubiquitous and Windows security evolves, dependence on BDE introduces technical debt and deployment risks. Therefore, while the BDE installer is an invaluable tool for RAD Studio 10.2 Tokyo users today, it should be paired with a clear roadmap toward modern data access frameworks. In bridging the gap between 1990s data architecture and 2017 IDE capabilities, the BDE installer exemplifies the delicate balance between innovation and legacy that defines professional software engineering.
Installing the deprecated Borland Database Engine (BDE) in RAD Studio 10.2 Tokyo requires downloading a separate installer from the Embarcadero Registered Users Portal and enabling the design-time components ( dclbde190.bpl Locate your C:\Program Files (x86)\Embarcadero\Studio\19
) in the IDE. Due to lack of Unicode support, migrating existing BDE projects to FireDAC is strongly recommended. For more details, visit the Embarcadero DocWiki BDE Support for Delphi 10.4.2 - General Help
The Borland Database Engine (BDE) has been officially deprecated and is no longer included in the standard RAD Studio 10.2 Tokyo installation. To use BDE components in Delphi or C++Builder 10.2 Tokyo, you must use a separate standalone installer. How to Obtain the BDE Installer
Embarcadero provides the BDE installer as a separate download for registered users.
Official Download: Log in to the Embarcadero Registered Users Portal or CodeCentral.
File Details: Look for Item 30752, specifically labeled "BDE Installer for RAD Studio, Delphi, C++Builder 10.2 Tokyo". Installation & Setup Instructions
After downloading the installer, follow these steps to integrate BDE into your IDE:
Run the Installer: Execute the standalone BDE setup file to install the core engine files.
Enable Design-Time Components: To see BDE components (like TTable or TQuery) in the Tool Palette, you must manually install the design package: Open RAD Studio 10.2 Tokyo.
That text is definitely interesting, but for a very specific audience. It tells a story of technological transition, legacy code, and the stubborn persistence of the past in modern software development.
Here is why that text is significant: