A recent Windows update may have overwritten your payment terminal drivers.
Use tools like Dependency Walker to ensure ecpucm.dll isn't missing its own sub-dependencies. ecpucm.dll
Best for developers integrating card payment libraries into their own software. A recent Windows update may have overwritten your
Handling ecpucm.dll: Best Practices for Payment Terminal Integration ecpucm.dll
Some security software flags payment DLLs as "suspicious" due to their deep system access. Steps to Resolve: