This porgram loads an IFF-Picture and kill the second picture.
It kills every second line and makes an antialias. (with source)

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                   93     115  80.9% -lh5- 387a Apr 22  1995 deinterlace/.env
[generic]                 7963   13000  61.3% -lh5- 5110 Apr 23  1995 deinterlace/DeInterlace
[generic]                 2831    9564  29.6% -lh5- f606 Apr 23  1995 deinterlace/DeInterlace.c
[generic]                  319     636  50.2% -lh5- 2f27 Apr 23  1995 deinterlace/DeInterlace.h
[generic]                   78     102  76.5% -lh5- 3b37 Apr 23  1995 deinterlace/DeInterlace.lnk
[generic]                 3554    6500  54.7% -lh5- 6102 Apr 23  1995 deinterlace/DeInterlace.o
[generic]                  113     193  58.5% -lh5- 074d Feb 20  1995 deinterlace/SCOPTIONS
[generic]                  130     220  59.1% -lh5- 53af Apr 22  1995 deinterlace/smakefile
[generic]                  137    1746   7.8% -lh5- 7496 Apr 23  1995 deinterlace/Test.IFF
[generic]                  386     737  52.4% -lh5- ea19 Jul 31  1995 deinterlace/DeInterlace.txt
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        10 files   15604   32813  47.6%            Aug 30  1995