MASM32 LNK2001 error, anyone know how to fix?

[georgewashere]

Hey when I try to compile a very basic program on windows 7 64bit with masm32 I get the following error :

hello.obj : error LNK2001: unresolved external symbol _printf
LINK : error LNK2001: unresolved eternal symbol _WinMainCRtStartup
hello.exe : fatal error LNK1120: 2 unresolved externals

Does anyone know how to fix this specific error?

my code is as follows :

.386
.model flat, c
.stack 100h
printf  PROTO   arg1:Ptr Byte
        .data
msg1    byte "Hello World!",0Ah,0
        .code
main    proc
        INVOKE printf, ADDR msg1
        ret
main    endp
        end

Thanks for reading.

[BlackSheep]

It looks like you didn't include any libs for the linker. I'm not sure how masm32 handles this, but you'll need to include the files that define _printf.
_WinMainCRtStartup sounds like an entry point, so I feel like you left the entry point undefined. Look up how to define an entry point in masm32.
Also remember to take this advice with a grain of salt XD
I've done very little assembly, and it was under NASM.

[georgewashere]

Right on, I figured it was something with including (just by reading the errors) but unfortunately all the googling I have done has only turned up with links to invalid forum pages (MASM32 recently moved their message board I think which is why all the links are invalid).

I'll keep lookin - thanks again.

[BlackSheep]

http://www.acm.uiuc.edu/sigwin/old/workshops/winasmtut.pdf