Reopening serial port fails if not closed properly with CloseHandle

Question

I am working with USB device on Windows that is seen as a virtual serial port. I can communicate with the device using CreateFile and ReadFile functions, but in some cases m

Answer 1

One other thing that you don't want to happen is to have an open usb serial port and the user pull the usb to serial adapter. That bug has (is?) been around for a long time. Here was an answer to the bug

"Posted by Microsoft on 3/27/2009 at 4:03 PM Hi, Thank you for reporting this issue. We are aware of this problem and have fixed it for the next major release of the .NET framework.

If you have any concerns, please reactivate this issue and I'll respond asap. Thanks, Kim Hamilton Base Class Libraries"

Don't know if the problems are related. Microsoft Connect has more than a few USB Serial bugs reported.