Unspecified Run-time Error

Table of Contents

• Introduction
• Issue Overview
• Root Cause
• Affected Versions
• Resolution Steps
• Conclusion

Introduction

OLI Flowsheet: ESP is engineered to operate reliably on modern Windows systems, including Windows 10 and later. However, in certain environments, users may encounter a compatibility error ("Unspecified Run-time Error") when launching the application for a second time. This article outlines the cause of the issue and provides a validated resolution process for versions 10, 11, and 12 of OLI Flowsheet: ESP.

Issue Overview

Error Symptom:
Upon running OLI Flowsheet: ESP for a second session, the software may return a compatibility-related error, preventing successful execution.

Root Cause

This error is typically triggered by a registry-level compatibility flag that Microsoft Windows sets during installation. Although unnecessary, since OLI Flowsheet: ESP is fully compatible with Windows 10 and newer, this flag instructs the system to treat the application as if it were not. The problem is further compounded when a specific DLL fails to unload properly between calculations, resulting in a run-time error on subsequent launches.

Affected Versions

• OLI Flowsheet: ESP Version 10
• OLI Flowsheet: ESP Version 11
• OLI Flowsheet: ESP Version 12

Resolution Steps

1. Download the Repair Utility
   Retrieve the attached .zip file provided with this article.
2. Extract Executable
   Unzip the archive to a local directory on your system.
   The extracted folder will contain OLIFixAppCompatFlags.exe which is specific to compatibility flag detection and repair.
3. Run the Utility
   Double-click the executable file to launch the diagnostic tool.
   If the tool detects an active compatibility flag, it will provide an option to remove it.
   Follow the on-screen prompts to complete the fix.
4. Restart the System (Recommended)
   After applying the fix, a system restart is recommended to ensure all registry changes take full effect.

Conclusion

This Unspecified Run-Time Error issue, while uncommon, can disrupt workflow if not addressed. By following the resolution steps outlined above, users can restore full operational integrity to OLI Flowsheet: ESP. OLI remains committed to maintaining robust, platform-resilient software and providing practical tools to overcome technical friction in high-performance environments.

For further assistance, contact the OLI Support Team via the Support Center or submit a support ticket directly.