This library represents a minor upgrade to Version 1.7 of Richard Conn's ZCPR2 disk utility program DU2. There are two diferences between this version (1.8) and version 1.7 by Craig Miller: 1) The instruction that initializes the stack pointer on initial program entry is restored. It had gotten lost somewhere between version 1.1 and 1.7. It is important to provide a local stack immediatly because DU2 makes direct BIOS calls, and the stack provided by CPC on some systems may not be deep enough (normally BDOS provides its own local stack). If running Version 1.7 causes your system to crash before you get the DU2 prompt, you probably need this fix. 2) Richard Conn's standard opening data block has (SINSFORM) has been restored. Without this block, GENINS will not recognize DU2 as a ZCPR2 utility, preventing customization of max disk, max user, CPU speed, etc. The files on this library are: READ.ME - This file DU2BRIEF.DQC - A brief summary of DU2 commands, compressed DU2V18.CQM - Executable .COM file, ready to install via GENINS DU2V18.AQM - The complete modified source code, compressed. NOTE - DU2V18.ASM, like DU2V17, can be assembled with ASM - MAC is not required.