The oawsl80uw.dll error comes from OaWsl by Oasys Ltd. The company creates a variety of software packages for business use. It has file sharing software that you would see in a classic business setting, while also allowing more advanced computer aided design tools.
Resolving the Error
In the business setting, you should report the problem to the technical department as soon as possible. The error will only cause the computer to slow down until it eventually crashes. Do not attempt to fix the error yourself as doing so could result in permanent damage.
In a home situation, you could attempt to resolve the error if know what you are doing. However, it is not recommended. It is safer and easier to run a registry cleaner. SpeedZooka guarantees to remove 100% of registry related errors or your money back.