TN - ITAA - 26051509 How to Upgrade InTouch Access Anywhere (ITAA) Server Independently of System Platform
Last updated: May 15th, 2026Description
- Author: Zach Burns
- Published: May 15th, 2026
Details:
- Document Version: 001
- Applies to Version(s): InTouch Access Anywhere 2017 or later

Description
This technote outlines the procedure to upgrade InTouch Access Anywhere (ITAA) independently of the AVEVA System Platform installation.
This approach offers improved compatibility with modern web browsers and mobile devices without triggering an upgrade of other System Platform components.
Scope:
Use this method when:
- Only ITAA functionality needs to be updated
- A full System Platform upgrade is not desired
Problem:
When using older versions of ITAA (e.g., 2017), users may experience:
- Poor performance or connection issues in modern web browsers
- Limited or unreliable access from iPhone/iPad devices
- Compatibility issues with newer mobile operating systems
Solution Details
Solution Steps:
Resolution:
To upgrade only the InTouch Access Anywhere Server, use the standalone ITAA installer for 2023b (2023.0.100):
Download Link (ITAA 2023.0.100):
Note: This process replaces only the InTouch Access Anywhere Server component and does not modify InTouch applications or other System Platform components.
⚠️ Important:
Back up all InTouch Access Anywhere configuration settings (ports, certificates, and security settings) before uninstalling. These settings may need to be reapplied after installation.
Step 1: Uninstall Existing ITAA Server
Open Control Panel > Programs and Features > Uninstall InTouch Access Anywhere Server. Locate Wonderware InTouch Access Anywhere Server, right-click, and select Uninstall/Change:

Select Remove and proceed through the prompts to uninstall:

Confirm the uninstall completes successfully:

Verify the entry for the Wonderware InTouch Access Anywhere server is no longer listed in Control Panel:

Step 2: Reboot the ITAA server
Step 3: Install ITAA from the Standalone installer (2023b)
Once the server reboots, install ITAA 2023b using the standalone installer (not the full System Platform installer). Make sure the installation file (.zip or .iso) is unblocked:
Right Click → Properties → Unblock → Apply:

Launch setup.exe as Administrator:

Click Next to proceed with the installation:

Select InTouch Access Anywhere Server and click through the prompts to complete the installation:

The new entry for ITAA Server 2023b will now be listed in Control Panel:

Step 4: Reconfigure the ITAA server as needed
Validation:
After installation:
- Launch the ITAA URL in a web browser
- Verify successful connection to an InTouch application
- Confirm functionality from a mobile device
- Validate user access and session stability
Notes:
- Do not mount or run the full System Platform installer if you want to avoid upgrading other components!
- This method upgrades only the ITAA component, leaving the rest of the system platform installation unchanged
Compatibility Notes:
- For best results on iPhone/iPad, use Google Chrome (latest version) or Safari (latest version) when accessing ITAA
- Ensure browsers are fully updated for optimal performance
- The newer ITAA version (2023b) provides improved compatibility with:
- Modern web browsers
- Mobile operating systems (especially iOS)
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