If you have ever dug into the Task Manager on a Windows machine that runs Microsoft Office, you might have stumbled upon a process named OSE.exe located inside a folder called Proplus.ww. For many users, this raises immediate questions: Is this a virus? Why is it consuming CPU power? Can I disable it?
Click-to-Run (Modern Office 365/2019+):
C:\Program Files\Microsoft Office 15\root\office15\ose.exe (version number varies) Proplus.ww Ose.exe
cmd, right-click Command Prompt, and select Run as Administrator.regsvr32.exe "%CommonProgramFiles%\Microsoft Shared\Source Engine\Ose.exe"If the Proplus.ww folder exists on a local drive (e.g., D:\Proplus.ww) and you no longer need to modify Office features, you can safely delete that specific folder. OSE.exe will then stop attempting on-demand installs from that location. The system copy at C:\Program Files\Common Files\Microsoft Shared\Source Engine\OSE.EXE must remain. Understanding Proplus