Explanation

EU name: CHKHLP

(Date: Apr 18 2016 CHKHLP )

The Check Help section has been copied literally from Rob Hooft's 1996 WHAT_CHECK Help pages. In the mean time we have started a WHAT_CHECK user course This course is likely to be finished about Xmas 2010, but feel free to look there as already a considerable amount of material is available.