How to remove attachment lines

Hi,

I need to remove Attachment lines (ATC1) using SDK.

At the SDK help, I found the following:

"To remove an Attachment item, set its FileName property to NULL ("") and call the Update method of the calling object."

I did that, but when i call the Update() method, it returns error -5002 (path not found).

Does anyone have an idea of how to remove attachment lines?

I spent more time to fix this issue. But I cant fix. :(

I don't have much time for this. Please help me.

Regards,

Jithin George