Oleaut32.dll is a library used in Microsoft for OLE technologies; OLE Automation. It facilitates the communication of meaningful data between software applications. Oleaut32.dll is included in Windows operating systems from Windows 95 to Windows 7. Countless programs use it.
Oleaut32 stands for "Object Linking and Embedding Automation for 32-bit Windows." OLE Automation allows applications to handle files and information created by other applications, and oleaut32.dll enables this process. For example, oleaut32.dll is used to embed an Excel spreadsheet in a Microsoft Word document.