Frequently asked questions for self help.
Knowledge base article 26Write Freeze/Unable to register document.
Symptom 1 : error message on install: "Ability, clipboard 270296 unable to register document. document may be already open"
Symptom 2: Write and Spreadsheet get as far as displaying splash screen before freezing.
Cause: some Windows services have been turned off.
Solution: Whatever it was that was turned off needs to be turned back on! At time of writing, we do not know the service(s) involved. Note that the same problem exists in Microsoft Word.