In the MASM directory, you must reconstruct the following hierarchy in order to build the engine and tools. The BIN directory is required. Volume in drive X is Disk Directory of X:\GenesisSDK10\masm\* 1/27/99 16:10 . 1/27/99 16:10 .. 1/27/99 16:10 BIN 1/27/99 16:10 Include 0 bytes in 0 files and 4 dirs Directory of X:\GenesisSDK10\masm\BIN\* 1/27/99 16:10 . 1/27/99 16:10 .. 10/29/97 21:01 9,622 ML.ERR 10/29/97 21:04 351,744 ML.EXE 361,366 bytes in 2 files and 2 dirs 393,216 bytes allocated Directory of X:\GenesisSDK10\masm\Include\* 1/27/99 16:10 . 1/27/99 16:10 .. 8/02/93 15:00 7,708 STDCALL.INC 7,708 bytes in 1 file and 2 dirs 32,768 bytes allocated Total for: X:\GenesisSDK10\masm\* 369,074 bytes in 3 files and 8 dirs 425,984 bytes allocated 2,147,450,880 bytes free