AutoChrom: EOleSysError or "Library Not Registered" Error After Update

Description

After updating AutoChrom using WebUpdater or USETUP, the application may fail to start with an EOleSysError indicating 'Library not registered'. This error occurs when certain system components (DLLs) are not properly registered during the update process. Performing a clean reinstall can resolve the problem.

Solution

Option 1: Reinstall Using the Full Installer

1. Download the latest installer from the Download Portal or request the latest installation package through Support.
2. Run the installer as Administrator:

• Right-click SETUP.EXE and select Run as Administrator.
• Choose the same installation directory as your current version.

3. Complete the installation and restart AutoChrom.

Option 2: Clean Reinstall (If the Issue Persists)

Refer to the following article -  Spectrus and Percepta: Upgrade to Latest Supported Version – Revvity Signals Support, Option C - Upgrade by performing a full reinstall.

Upgrade Best Practices

To avoid this issue in the future:

• For major version upgrades (e.g., 2025 → 2026), always use the full installer (SETUP.EXE).
• For minor updates (e.g., 2026.x → 2026.y), you may use WebUpdater or USETUP. If the error occurs, switch to the full installer.
• Always run installers with administrative privileges to ensure proper component registration.

Need Further Assistance?

If the issue persists, contact Support.