PWI – Pocket Word Documents are also known as Ink Writer/Note Taker documents that were made by Microsoft Word for their Windows Mobile edition. Sometimes called “Pocket Word”, PWI is created on Pocket PC PDAs that are using the Windows Mobile OS. While it is like a Word .doc document, it does not have features such as footers, headers and comments ability. You can view PWI files through Outlook’s “Notes” when you sync with a Windows mobile device. To accomplish this have synchronization turned on for notes and then sync with the Windows Mobile Device Center. You can then view the notes in Outlook. PWI files previously could be opened by Microsoft Active Sync in conjunction with Microsoft Word, but with Microsoft’s release of the Windows Mobile Device Center, PWI - Pocket Word Document support is no longer provided. Handwritten text in PWI files can be read by Microsoft OneNote2003, and there are some older editions of Microsoft Works than can open PWI files, including Works 7.0.
While when you import a PWI file to your computer it will allow you to read it using Word, text written with your light pen on your PDA will not be readable.