I finally got the time to reinstall my broken VC++ 6.0 and update to SP4, so now I can build beta builds instead of relying on the binary kits. I followed the build instructions in nt/README, and opted to include PNG support. I successfully built zlib and PNG, but when I went to build xemacs itself, I got the following error. It looks like it is trying to treat zlib as an object instead of an include directory, but the nmake args look right to me. Any ideas? nmake -nologo -f minitar.mak ZLIB="E:\My Documents\Development\xemacs-21 .2.35\jaux\zlib" NT="..\nt" LIB_SRC="..\lib-src" cl -Fo..\lib-src\minitar.obj -c ..\nt\minitar.c -I E:\My Documents\Devel opment\xemacs-21.2.35\jaux\zlib Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 12.00.8804 for 80x86 Copyright (C) Microsoft Corp 1984-1998. All rights reserved. Command line warning D4024 : unrecognized source file type 'Documents\Developmen t\xemacs-21.2.35\jaux\zlib', object file assumed Command line warning D4027 : source file 'Documents\Development\xemacs-21.2.35\j aux\zlib' ignored minitar.c ..\nt\minitar.c(18) : fatal error C1083: Cannot open include file: 'zlib.h': No such file or directory NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop. NMAKE : fatal error U1077: '"E:\Program Files\Microsoft Visual Studio\VC98\bin\N MAKE.EXE"' : return code '0x2' Stop. Jay Levitt | This is not the start of World War III Fairfax, VA | No political ploys jay(a)jay.fm | I think both your constitutions are http://jay.fm | terrific, so now you know - be good boys