Weird Error When Precompiling Genwin.mak With Nsqlprep

I am trying to compile the sample program genwin.sqc, using nsqlprep
which is used to precompile embedded sql in C. I am getting weird
errors and that is because windows.h is included in the genwin.sqc
file. I am using

Setting the lib and include path:

set INCLUDE=C:Program FilesMicrosoft SQL
Server80ToolsDevToolsinclude;C:Program FilesMicrosoft SQL
Server80ToolsDevToolsSamplesesqlc;%include%
set LIB=C:Program FilesMicrosoft SQL
Server80ToolsDevToolslib;%lib%


Precompiling:

nsqlprep genwin /NOACCESS

Microsoft (R) Embedded SQL for C Pre-Compiler. Version 8.00.194.
Copyright (c) Microsoft Corp 1993-1998. All rights reserved.
Warning: genwin.sqc, line 7978: syntax error.
}
Warning: genwin.sqc, line 7987: syntax error.
}
Warning: genwin.sqc, line 71840: syntax error.
__declspec void __stdcall DragAcceptFiles(HWND,BOOL
Warning: genwin.sqc, line 71842: syntax error.
__declspec HINSTANCE __stdcall ShellExecuteA(HWND hwnd
Warning: genwin.sqc, line 71843: syntax error.
__declspec HINSTANCE __stdcall ShellExecuteW(HWND hwnd
Warning: genwin.sqc, line 71858: syntax error.
__declspec INT __stdcall ShellAboutA(HWND hWnd
Warning: genwin.sqc, line 71859: syntax error.
__declspec INT __stdcall ShellAboutW(HWND hWnd
Warning: genwin.sqc, line 71941: syntax error.
HWND
Warning: genwin.sqc, line 71946: syntax error.

As soon as i remove windows.h, the errors disappear. It seems nsqlprep
doesnt like windows.h. How do i get over this.
Would really appreciate if u can help me out.

versions:
OS: windows 2000 server service pack 2
VC++: version 6.0
SQLserver 2000: 8.00.194, RTM, Standard edition

Thank you
Amit