+# emulate the self-extractable installer
+head -n 256 %{SOURCE0} > header
+ARCHREALSIZE=$(awk -F= '/^ARCHREALSIZE=/{print $2}' header)
+BLOCKSIZE=$(awk -F= '/^BLOCKSIZE=/{print $2}' header)
+RESSIZE=$(awk -F= '/^RESSIZE=/{print $2}' header)
+ARCHSTART=$(awk -F= '/^ARCHSTART=/{print $2}' header)
+RESOURCE_ZIP=Resource1.zip
+INSTALLER_BLOCKS=$(expr $ARCHREALSIZE / $BLOCKSIZE)
+INSTALLER_REMAINDER=$(expr $ARCHREALSIZE % $BLOCKSIZE || :)
+if [ ${INSTALLER_REMAINDER:-0} -gt 0 ]; then
+ INSTALLER_BLOCKS=$(expr $INSTALLER_BLOCKS + 1)
+fi
+dd if=%{SOURCE0} of="$RESOURCE_ZIP" bs=$BLOCKSIZE skip=`expr $ARCHSTART + $INSTALLER_BLOCKS` count=$RESSIZE