Every once in awhile I get this error when trying to open up an InfoPath form. The data stored in the database has an invalid character. I can go in and delete the offending character and get the form working again. My question is what are the valid characters supported by retrieval from the access database? I'm looking for an answer using the ASCII numbering system
0-9 [48-57]
A-Z [65-90]
a-z [97-122]