What was the size of the attachment? Hotmail has a limit of a 1mb I think. It may be lower now. Michael :-)

It sounds like the target machine doesn't have the .NET runtime installed. You can get the redistributable from this MSDN download page. James Sonork ID: 100.11138 - Hasaki "Smile your little smile, take some tea with me awhile. And every day we'll turn another page. Behind our glass we'll sit and look at our ever-open book, One brown mouse sitting in a cage." "One Brown Mouse" from Heavy Horses, Jethro Tull 1978

Every time you access Name within your getter or setter code, you recursively invoking it. It stops only when this call sequence exhaust the call stack. You can check it tracing execution in debugger. There are to possible ways to correct this. First is to just create the field: public string Name; // all problems gone the second one is to back up your property with the private field and use in getter and setter code: private string name; // lowercase n public string Name { get { return name; } // you are noo more recursively accessing getter here set { name = value; } // same for setter } Cheers, elk.