Подскажите как скомпилировать EXE с определенным ImageBase? Компилятор MASM

Не скомпилировать, а слинковать! Ты вообще понимаешь, что такое "линковка"? link /? рулит!

Так надо написать /BASE:АДРЕС ? Вроде не работает.

Я балдею. Ты доки читать пробовал? MSDN видел?
Читай:

The key is a string of alphanumeric characters and is not case sensitive. It is usually the name of a DLL, but it need not be. The key is followed by a base address in C-language, hexadecimal, or decimal notation and a maximum size. All three arguments are separated by spaces or tabs. The linker issues a warning if the specified size is less than the virtual address space required by the program. A comment is specified by a semicolon (;) and can be on the same or a separate line. The linker ignores all text from the semicolon to the end of the line. This example shows part of such a file:

main 0x00010000 0x08000000 ; for PROJECT.exe
one 0x28000000 0x00100000 ; for DLLONE.DLL
two 0x28100000 0x00300000 ; for DLLTWO.DLL
If the file that contains these lines is called DLLS.txt, the following example command applies this information:

link dlltwo.obj /dll /base:@dlls.txt,two

Сорри за оффтоп. ступил.