Medisoft Error: 5133 The Supplied buffer is not of the expected size for the specified property This error seems to be caused by windows updates causing problems with Medisoft. These updates somehow damage the data dictionary. To fix, restore from backup. Alternatively, contact a professional attempt revert to v9 and convert back up. This also may be able to be fixed by exporting the table and re-attaching with Mediutils or using copy data utilities.