RESAMPLEDMO.dll is a DLL file by Microsoft Corporation for Microsoft® Windows® Operating System. It is part of the Windows Media Resampler component, which is responsible for converting digital media files from one format to another, including sample rate conversion, channel mixing, and more. If you encounter an error related to this DLL file, it could indicate a problem with the Windows Media Resampler component or with the digital media file you are trying to convert. In such cases, you could try reinstalling the Windows Media Player or using a third-party media converter tool to troubleshoot the issue.