Hello!
Thank you your read.
I have a problem on serial comm. in VB program.
I want to InputBinaryMode to receive the data. However, when I set Binary mode in MSCOMM control, it cannot receive several byte of data. It only interupt once (or receive one byte), but my receive data contain several bytes.
Moreover, I change input mode it InputTextMode, VB can receive several bytes, when transmit several bytes.

Thank you your help.

KLTsang