JR, The problem most everyone has when beginning to program with the API's is that they define the integer fields incorrectly. Most make the mistake of defining the field like this: From To Dec FieldName 4b 0 myField Do either one of these: From To Dec FieldName 1 4b 0 myField 10u 0 myField Bill > Can anyone tell me this: If I want to send a Starting Position of 1 and a Length of Data 4 to this API, what do I have to put in the Parmaeters? It seems to translate it to Hex (maybe, not sure) cause I get an error when calling this API. The Size Value is outrageous. Thanks in advance.