Hi, my name is Mirko. I'm trying building an application similar yours (OmronEthernetActiveXControl, CSCJCPSerialActiveXControl) but i don't known what are rights omron manuals to get informations. can you help me to found them? or can i have your source codes to edit and modify? after restlying i resend you my suorce codes!! I'm a good programmer.. i use VB.Net, C#, Java, C++, ecc.. but i'll use VB.net for this project.. thanks!!!! Mirko (i don't speak english very well.. sorry)