Microsoft (R) MASM Compatibility Driver
Copyright (C) Microsoft Corp 1993.  All rights reserved.

 Invoking: ML.EXE /I. /Zm /c /IC:\WWitch\WTD\SDK\include /Cp /Cx WTUC.asm 

 Assembling: WTUC.asm
wtuc_sub.asm(532): error A2006: undefined symbol : BSTACK
WTUC.asm(240): error A2006: undefined symbol : BSTACK
