Java RS232 Comm on Vista-64 bit

Question

We have a Java application which needs to communicate with a peripheral device over Virtual Serial COM port. We use the RS232 Java COMM API (javax.comm.properties, comm.jar, win32com.dll) to achieve the same. Currently the code works fine on Windows XP 32-bit, Vista 32-bit and Windows 7. However we are having a problem trying to communicate on Vista 64-bit. I read from the Java forums that there is no 64-bit support for the Java COMM API

I was wondering if anyone was facing a similar situation and were able to resolve the same in some way?

Answer 1

Try the RXTX library. It's an open source alternative to Sun's Comm API. I haven't used it on a 64-bit machine, but it generally has better Windows support than Sun's version.

Answer 2

I also need to write a java program that can do rs232 comm. I tried both ways. When using RXTX, I get an exception. It says, "Can't load IA 32-bit .dll on a AMD 64-bit platform thrown while loading gnu.io.RXTXCommDriver".