I’ve just installed MSVC Express 2010 and loaded the solution as specified here: http://www.freertos.org/FreeRTOS-Plus/FreeRTOSPlusTCP/examplesFreeRTOSsimulator.html The source code compiles but the build fails with this message: 1> Generating Code… 1>LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== I’m sorry if this is basic, but I was expecting the demo to work out of the box… I’m on windows 7 (x64), btw. Thanks

Hi, This looks like a good solution: http://stackoverflow.com/questions/10888391/error-link-fatal-error-lnk1123-failure-during-conversion-to-coff-file-inval but I haven’t come across this problem yet. Regards

Just to satisfy myself, on a Win7 64-bit host and Visual Studio Express 2010 with service packs I tried downloading a clean FreeRTOS+TCP zip file and this is the build output I got: 1>—— Build started: Project: RTOSDemo, Configuration: Debug Win32 —— 1> DemoIPTrace.c 1> Run-time-stats-utils.c 1> main.c 1> demologging.c 1> UDPCommandServer.c 1> SimpleTCPEchoServer.c 1> SimpleUDPClientAndServer.c 1> UDPSelectServer.c 1> TwoUDPEchoClients.c 1> TCPEchoClientSingleTasks.c 1> TCPEchoClientSeparateTasks.c 1> CLI-commands.c 1> NetworkInterface.c 1> BufferAllocation2.c 1> FreeRTOSUDPIP.c 1> FreeRTOSTCPWIN.c 1> FreeRTOSTCPIP.c 1> FreeRTOSStreamBuffer.c 1> FreeRTOSSockets.c 1> FreeRTOSIP.c 1> Generating Code… 1> Compiling… 1> FreeRTOSDNS.c 1> FreeRTOSDHCP.c 1> FreeRTOSARP.c 1> FreeRTOSCLI.c 1> timers.c 1> tasks.c 1> queue.c 1> port.c 1> heap4.c 1> list.c 1> eventgroups.c 1> Generating Code… 1> WIN32.vcxproj -> C:tempFreeRTOS+TCP141019FreeRTOS+TCP141019FreeRTOS-PlusDemoFreeRTOSPlusTCPandCLIWindowsSimulator.DebugRTOSDemo.exe ========== Build: 1 succeeded, 0 failed, 0 up-to-date, 0 skipped ========== Regards.

Thanks for the posts! Applying the service pack fixed it.