Factorysoft Opc Client Install Patched File

The Definitive Guide to Installing and Configuring FactorySoft OPC Clients

In the world of industrial automation, few terms evoke nostalgia and simultaneous IT headaches quite like "FactorySoft." For a significant period in the late 1990s and early 2000s, FactorySoft was a premier provider of OPC (OLE for Process Control) tools. Their client software allowed operators to connect HMIs, spreadsheets, and custom applications to PLCs and DCS systems with ease.

However, FactorySoft was acquired by Rockwell Automation (specifically the RSBizWare line), and the standalone software eventually reached its End-of-Life (EOL). Despite this, thousands of industrial facilities still rely on legacy systems that require a FactorySoft OPC Client installation today. factorysoft opc client install

This write-up covers the technical process of installing the classic FactorySoft OPC Client, the critical hurdles regarding Operating System compatibility, the infamous "OPC Core Components" dependency, and modern migration strategies. Test 2: Tag Browsing and Quality Connect to


Test 2: Tag Browsing and Quality

Connect to an OPC server → Expand a tag group → Select a single tag → Click "Read Value" . Pass: Returns a value with Quality = "Good"

2. Running the Installer (Compatibility Mode)

If you have the original setup files (often distributed as a zip or an .exe), do not just double-click them.

  1. Locate the installation executable.
  2. Right-click the file and select Properties.
  3. Navigate to the Compatibility tab.
  4. Check Run this program in compatibility mode for: and select Windows 7 (or Windows XP Service Pack 3 if the Win 7 setting fails).
  5. Check Run this program as an administrator at the bottom.
  6. Click Apply and OK, then run the installer.

Tip: During installation, if asked to install dependencies like old Visual Basic runtimes or MFC libraries, allow it. These are crucial for the UI to render correctly.

Part 7: Best Practices After Installation

A successful factorysoft opc client install is only the beginning. Maintain your installation with these tips:

  1. Version Locking: FactorySoft periodically updates. Do not auto-update in a plant environment. Keep a known-good MSI on a network share.
  2. Backup DCOM Configuration: dcomcnfg → Right-click My Computer → Export List. Save the .txt file to your engineering documentation.
  3. Avoid Antivirus Interference: Exclude C:\Program Files (x86)\FactorySoft\, C:\Windows\SysWOW64\FactorySoftOPC.dll, and the process OPCClient.exe from real-time scanning.
  4. Event Log Monitoring: Check Event Viewer → Applications and Services Logs → FactorySoft for RPC disconnects or heap corruption warnings.

FactorySoft OPC Client – Installation Review

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