Communication Services and Networking Changes

  • Article

The following changes to Windows CE communication services and networking features may require that you modify your Cesysgen.bat file or modify applications that depend on these features.

  • UDP packet allocation

    Applications that were written for Windows CE .NET version 4.0 and earlier may need to be modified to accommodate a change in the way the buffer is allocated for UDP packets. This change affects applications that typically receive very large data packets, for example, packets larger than 1500 KB. In earlier versions of Windows CE there was a limit of five packets per socket, regardless of the size of the packets. Effective with Windows CE 4.1, the buffer size for each socket is specified as a certain number of bytes, with the default set to 8192 bytes. You can specify a larger per-socket buffer space for receives by calling the setsockopt function to change the value of the SO_RCVBUF socket option.

  • RAS Server

    Effective with version 4.2, the RAS Server feature has been separated out from the Dial-up Networking feature (SYSGEN_PPP). To retain the prior functionality, add SYSGEN_PPP_SERVER to your Cesysgen.bat file.

See Also

RAS Server/PPTP Server (Incoming) | What's New | New OS Features | New Features in Windows CE .NET 4.0 | New Features in Windows CE .NET 4.1 | Migrating from Windows CE 3.0 to Windows CE .NET

Last updated on Wednesday, April 13, 2005

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