Metadata is created and properties are added to it based on these options.
|esriMSAAccessed||0||Properties are added to metadata when it is accessed; metadata is created if it doesn't already exist.|
|esriMSAAlways||1||Properties are added to metadata always; metadata is created if it doesn't already exist.|
|esriMSACreated||2||Metadata is created and properties are added to it when metadata doesn't already exist.|
|esriMSANotCreated||3||Properties are added to existing metadata.|
|esriMSAOverwrite||4||Same as esriMSAAlways, except that individual tags are always updated, regardless of the value of the Sync attribute.|
|esriMSASelective||5||Same as esriMSAOverwrite, except that certain perperties (Name and ContentType as of now) won't be overwrite.|