Win32 fixes:
- added SDO_BLOCK_SIZE macro to win32 config.h
- added explicit casts to remove compiler warnings to sdo.c
- added missing exports to Canfestival-3.def

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<?xml version="1.0" encoding="utf-8"?>

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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

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</Project>