Christian Langanke has updated the WPS Toolkit Programming Guide and Reference on Netlabs. This is an INF file format.
Download: ftp://ftp.netlabs.org/pub/wpstk/wpstkref.zip
The WPS Toolkit itself was last updated to 1.60 in January 2007 and can be found on the Netlabs FTP serverat ftp://ftp.netlabs.org/pub/wpstk/wpstk160.zip
From: Mark Dodel
Source: OS2VOICE.org