Free OPC Downloads

We offer free trial versions of every product, so you can evaluate the software before you purchase. These trial versions are fully functional, limited only by a warning message.

OPC Client Toolkits for Developers

	dOPC Client Toolkit Version 3.9 for Delphi 5-7, 2005-2010, XE and XE2 to develop OPC DA, XML DA, AE clients (9 MB)
	dOPC Client Toolkit Version 3.9 for C++ Builder 5,6, 2006, 2007, 2009, 2010 and XE to develop OPC DA, XML DA, AE clients (8 MB)

OPC Utility Products

	dOPC Clone version 1.60 (1.1 MB)
	dOPC Explorer version 1.6 (1.5 MB)

OPC XML Server Gateways

	dOPC XGate version 3.03 (1.1 MB)
	dOPC XCOM version 0.98 (1.2 MB)

OPC Freeware Programs

	OPC DA Data Access Client Freeware version 1.00 (450 kb)
	OPC AE Alarm & Events Client Freeware version 1.00 (350 kb)
	OPC HDA Historical Data Access Client Freeware version 1.00 (350 kb)
	OPC Server Unregister Utility Freeware version 1.00 (350 kb)
	OPC XML DA Test Client Freeware version 1.00 (270 kb)

OPC Foundation

Codegear from Borland

W3C

dOPC