Professional set of Delphi and C++Builder components for virtual instrumentation

  • Meters, Bars (Gauge), with linear or log(10) scaling
  • Digital indicators (time, value)
  • Operating Point display
  • Dial (knob), Sliders, Trend/Recorder
  • buttons, switches, LED indicators
  • DB-Aware components and many more

DOPC (OLE for Process Control Client) v.3.01

By Kassl GmbH.

Shareware 11 Sep 2006


This easy to use component enables the user to control, browse, read and write data from any installed OPC Data Access 1.x, 2.x, 3.0 and XML Data Access servers.


  • Status: Trial (work while IDE is running)
  • Source: On purchase/registration
  • price: $590
  • Size: 5 157kB

Platforms: C2k6, CB5, CB6, D2005, D2006, D5, D6, D7

ExlApp (Russian version) v.1.0

By V.B. Kovenko.

Freeware + source 31 Jul 2001


Microsoft Excel OLE automation component.


  • Status: Fully functional
  • Source: Included
  • Size: 321kB

Platforms: CB5

Office CommandBarButton v.1.0


Freeware + source 24 Jul 2001


This is an Commandbar Hook Component, every button in Office application can be hooked.

This component was written, because Delphi/C++Builder cannot handle Events with Interfaces as parameters as the Office.CommandbarButton.OnClick Event has.

It is inherited from TOLEServer for easy access to the ConnectionpointContainer.

Examples for Word and Excel provided, but it does also work with all other office applications (Outlook, Powerpoint, Project, ...).


  • Status: Fully functional
  • Source: Included
  • Size: 16kB

Platforms: CB5, D5, D6

OleFix v.1.0

By Vladimir Gaitanoff.

Freeware + source 06 Jul 1998


Speed up OLE variants up to 2 times.


  • Status: Fully functional
  • Source: Included
  • Size: 4kB

Platforms: D2, D3

Structured Storage Library v.1.2e

By Plasmatech Software Design.

Shareware 14 Dec 2000


The Plasmatech Structured Storage Library harnesses the power of OLE Structured Storage making it easy for Delphi 2 programmers to store a hierarchy of virtual folders and files inside a single disk file.


  • Status: Trial (work while IDE is running)
  • Source: On purchase/registration
  • price: $40
  • Size: 183kB

Platforms: CB1, CB3, CB4, CB5, D2, D3, D4, D5

TOleRegister v.1.2

By Jon Smith.

Freeware + source 22 Apr 2000


Ever needed to register an OLE object programmatically? Set the filename and call RegisterOLE or UnRegisterOLE and the job is done. Works on TypeLibraries, OCX, EXE, and DLL files.


  • Status: Fully functional
  • Source: Included
  • Size: 2kB

Platforms: CB3, CB4, D4, D5

Transfer@once v.1.7

By Quasidata.

Shareware 01 Jul 2006


Many applications allow users to transfer data to another application by dragging and dropping the data with the mouse, or by using the clipboard. With Transfer@once to build applications that transfer data both ways is now so easy as put a component on a form.

Now you can get external drag-and-drop operations managed by OLE to work through the same events as internal ones managed by the VCL.

Data can be supplied out of and accepted into your application as BIFF8 (native to MS Excel), BIFF5 (supported by MS Access), RTF (native to MS Word), and Text/Unicode Text (supported by everything).

The Transfer@once component set consists of the following components:

  • TtaoWinControl is a general-purpose customizable component designed to work with any visual control.
  • TtaoStringGrid allows TStringGrid to support clipboard and drag-and-drop data transfer.
  • TtaoDbGrid makes TDBGrid capable to copy and paste records as well as a single cell. It supports drag-and-drop of a single cell also. If a TtaoDbGrid component is unable to paste records, it stores them in an in-memory dataset, so the user is able to fix the problems that resulted in the paste errors.
  • TtaoDragCursors replaces the drag cursors predefined in the VCL with the common Windows drag cursors.


  • Status: With Nag-Screen
  • Source: On purchase/registration
  • price: $99
  • Size: 2 458kB

Platforms: C2k6, CB4, CB5, CB6, D2005, D2006, D4, D5, D6, D7

VUOPCclient v.1.0

By Valeriy Ubogov.

Shareware 16 Mar 2004


VUOPCclient is an Delphi 100% VCL component to create OPC-clients. This easy to use component enables to control, browse, read and write data, from any installed OPC Data Access 2.0 Servers. VUOPCclient include many classes, properties, methods and events which enable users to create OPC-client applications rapidly and professionally with high performance. The component was tested with OPC-servers: Matricon, InSAT, Freelance.


  • Status: Partially restricted
  • Source: On request
  • price: $50
  • Exe demo: included
  • Size: 727kB

Platforms: D5, D6, D7

XMLAuto v.1.0

By Cogisoft.

Freeware + source 03 May 1999


OLE Automation for XML with Delphi. Access XML documents content as a structure.


  • Status: Fully functional
  • Source: Included
  • Size: 36kB

Platforms: D3, D4

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