a .net data provider is a collection of objects used to communicate between a data source and a data set in other words a data provider is used to communicate with a data source i e database execute commands against the data source and then retrieve results from the data source
By default, the work item file attachment size limit is 2,048 kilobytes (2 MB). For information on how to change the attachment size limit, see How to: Set the Maximum Attachment Size for Work Items. Consider the implications carefully before changing the default attachment size limit. Changing the attachment limit value will alter the attachment size limit for all Team Foundation Server users.
However, whenever the size of the message is greater than 4 MB, you get an error with reason code: 2030 (MQRC_MSG_TOO_BIG_FOR_Q) The default limit for maximum message size for the queue manager, channels and queues is 4 MB or 4194304 or 4 194 304 bytes. The upper limit is 100 MB or 104857600 or 104 857 600 bytes.