REMINDER V4.2 WITHOUT a TIME BOMB This is a version of REMINDER which will function correctly without a time bomb. Versions of REMINDER from the Spring and Fall 1984 VAX SIG tapes had expiration dates built in so that REMINDER would fail with a bad opcode error after a given date. The Fall '84 version was set to crash starting on August 1, 1985 (01-AUG-1985). This version is a copy of the Fall '84 version in which the time bomb still exists but won't go off until 01-AUG-2984, by which time there will be more interesting things to do than run REMINDER and VT100s will be ancient history, as will VAXen. The time bomb was put in so the original versions would get people hooked on REMINDER and force them to buy a commercial version later. Now you can just use it in peace. To reset the time bomb several techniques could have been tried. The Spring and Fall 1984 versions could have been compared and the areas of difference searched for dates or $GETTIM calls. The simplest technique worked here however: just dump the file in ASCII and look for dates in the area of a year after the create date of the file. It happened that block 14 had the string "01-AUG-1985" in it. Had this string been CRC protected it would've been a bit more work to find the CRC. However, in a HOL it's easier to write a simple checksum (or do nothing). I don't know if a checksum was used, but I changed the year to 2984 to defeat a checksum check, using DDT in task-image debug mode to do the search and patch. The resulting program seems to run just fine. Replace your old REMINDERs with this one and use it in good health. Glenn Everhart Spring 1985 tape editor