A family of Microsoft word processing software products for creating web, email, and print documents.
Are you directly opening the word document from the zip folder or is the file extracted? Does the issue occur only documents which are zipped ?
If you have the file extracted, try opening the document from within the Word application. To do this,
Open Word - File - Open - Browse to the document and try opening it.
Does the same issue occur while opening all document created in format 97-2003 (.doc) format?
Try creating a new Word document and save it in the 97-2003 format and check if the issue occurs.