U25idautomation.dll Crystal Reports Site

If you are not locked into a legacy system, switch to Code 128. It is denser, more reliable, and has free UFLs like ufl128.dll from the Crystal Reports community.

To understand the error, you must first grasp the role of this DLL. The naming convention u25idautomation breaks down as follows:

Thus, u25idautomation.dll serves two primary roles depending on your environment: u25idautomation.dll crystal reports

Because of these dual roles, troubleshooting requires first identifying which function the DLL is serving in your specific report.

Create a new Crystal Report with a single formula: If you are not locked into a legacy

// Test Formula
EvaluateAfter(PrintingState);
// Replace with actual function name from your UFL documentation
// For example: UFL IDAutomation_Code128("TEST123")

If that fails and you see u25idautomation.dll again, the issue is global. If it works, then the original report has a corrupted reference. Recreate the barcode formula from scratch.

Once your barcode works, optimize it.

If you are running a web application that uses the Crystal Reports Runtime (e.g., an ASP.NET app), ensure the application pool is enabled for 32-bit applications:

Also, the runtime version of Crystal Reports must match the calling application’s bitness. For web servers, install the SAP Crystal Reports Runtime engine for .NET (32-bit). Thus, u25idautomation