The application works correctly for a while then it suddenly closes and shows the classical windows error dialog inviting you to send a repport. I can't debug because the application works correctly when I use the computer used for developping the application (where Visual Studio runs). The problem appears when I run the App on a laptop computer. I was thinking about timing problems. Because I don't use the RS232 control signals DTS,... -- modified at 11:48 Wednesday 19th July, 2006

It shows the windows error dialog and when I look the details I get the following information : EXE NAME="ERW.exe" FILTER="GRABMI_FILTER_PRIVACY" MATCHING_FILE NAME="ERW.exe" SIZE="454656" CHECKSUM="0xA7F4B92D" BIN_FILE_VERSION="1.4.5.0" BIN_PRODUCT_VERSION="1.4.5.0" PRODUCT_VERSION="1.4.5" FILE_DESCRIPTION="Programmeur ERW" COMPANY_NAME="ELA Innovation" PRODUCT_NAME="ELA Read Write" FILE_VERSION="1.4.5" ORIGINAL_FILENAME="ERW.exe" INTERNAL_NAME="ERW.exe" LEGAL_COPYRIGHT="(c) ELA Innovation. Tous droits réservés." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x4" VERFILETYPE="0x1" MODULE_TYPE="WIN32" PE_CHECKSUM="0x0" LINKER_VERSION="0x0" UPTO_BIN_FILE_VERSION="1.4.5.0" UPTO_BIN_PRODUCT_VERSION="1.4.5.0" LINK_DATE="05/16/2006 14:07:44" UPTO_LINK_DATE="05/16/2006 14:07:44" VER_LANGUAGE="Français (France) [0x40c]" MATCHING_FILE NAME="Uninstall.exe" SIZE="35453" CHECKSUM="0x1CDEBCED" MODULE_TYPE="WIN32" PE_CHECKSUM="0x0" LINKER_VERSION="0x0" LINK_DATE="01/28/2003 14:21:01" UPTO_LINK_DATE="01/28/2003 14:21:01" EXE NAME="kernel32.dll" FILTER="GRABMI_FILTER_THISFILEONLY"> MATCHING_FILE NAME="kernel32.dll" SIZE="1048576" CHECKSUM="0x60165972" BIN_FILE_VERSION="5.1.2600.2180" BIN_PRODUCT_VERSION="5.1.2600.2180" PRODUCT_VERSION="5.1.2600.2180" FILE_DESCRIPTION="DLL du client API BASE Windows NT" COMPANY_NAME="Microsoft Corporation" PRODUCT_NAME="Système d'exploitation Microsoft® Windows®" FILE_VERSION="5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)" ORIGINAL_FILENAME="kernel32" INTERNAL_NAME="kernel32" LEGAL_COPYRIGHT="© Microsoft Corporation. Tous droits réservés." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x40004" VERFILETYPE="0x2" MODULE_TYPE="WIN32" PE_CHECKSUM="0x10626E" LINKER_VERSION="0x50001" UPTO_BIN_FILE_VERSION="5.1.2600.2180" UPTO_BIN_PRODUCT_VERSION="5.1.2600.2180" LINK_DATE="08/04/2004 07:54:15" UPTO_LINK_DATE="08/04/2004 07:54:15" VER_LANGUAGE="Français (France) [0x40c]" I presume this information is not usefull !!! :~ -- modified at 11:01 Wednesday 19th July, 2006

Hello everybody, I have developped a Visual C++ application that drives a serial COM port (9600 8 N 1). When I use the PC's COM port to dialog with the hardware, the application works correctly; but when I connect the hardware to a USB port via a profilic USB to serial adapter the application shows a error message and closes abruptly. Does somebody encountered such a problem ? or any idea about how to solve or debug ? :confused: Thank you in advance, AG