I'm thinking since I am working off of the main form, and it has the other forms as 'subform controls' - everything should technically be in the main form code since the subforms are controls. I was able to repeat the hanging process Not Responding message with a Long Text field and 3500 characters and LOTS of items with.Spell checking VBA sub in MS Access has stopped. I have to figure out a way to change the focus and have it spellcheck the actual subform - but do I place the code in the main form VBA, or do I put the code in the actual forms. However, after I tried entering stuff like Forms!MainFormName!SubFormControlName!Form - it gave me errors.

One possibility might be to start use Automation to open an instance of Word, copy the text to be spell-checked into a document in that instance and do.

I also added the same code in my other forms, which are 'subform' controls in the Main form. AFAIK, the Language Tools (which include spell checking) have never been included with the run-time, and it doesn't surprise me that Access 2010 doesn't know anything about Office 2003.

Ms access spell check