Editor's Note: Technically the following information is NOT a MUF, but is included here due to the fact that it may help save someone a lot of grief! Similar to advising others not to use delayed cache writes and DOS 6.0's DoubleSpace. 29) CHKDSK Can you tell me the _date_ of the BAD CHKDSK? I live in fear of it as I mainly work on other peoples computers an I have no way of telling if I will destroy their HD with a simple chkdsk command! Wallace Mcgee The only problem with CHKDSK is with large partitions where DOS uses a 256-sector FAT. Specifically with partition sizes in the ranges of: 127MB-129MB 254MB-258MB 508MB-516MB 1018MB-1030MB 2035MB-2061MB The date of the CHKDSK that has that problem is 04/09/91. The replacement being dated 11/11/91. UNDELETE has the same problem for the same reason. Bottom line is - if you don't have partitions in these size ranges - you don't have a problem. The corrected versions can be had by downloading from the MS BBS. Probably also available off of CompuServ. The file to look for is: PD0464.EXE. The phone number for the MS BBS is (206) 936-6735. Hope that helps you and others with the same question. Steve Osterday =============================================================================== 30) DELTREE Another new, and potentially dangerous, feature of IBM DOS v6.01. If you were on drive C: and issued the command: DELTREE /Y \ it would dutifully, and without stopping to ask for verification, delete your entire drive C:! (You can test it on a floppy with directories, subdirectories, and files scattered throughout ... just make sure you specify and/or are on that drive (disk) when issuing the above command). Vernon Frazee =============================================================================== Well folks, that's it for Vol.1 #6 Please forward any information about other Fabulous MUFs to Gary Cooper in the FidoNet BatPower echo or at the addresses below. Gary Cooper, Co-Sysop Programmer's Corner FidoNet 1:255/6.0 gary.cooper.@f6.n255.z1.fidonet.org Thanks! Till next time, we return you to your regularly scheduled BatPower program . . .