The MASM situation is more difficult than described so far. It is part of VC++ 7.

  * Microsoft MASM (aka "ml")

  * Microsoft MASM (aka "ml")

  * Free Netwide Assembler NASM.

  * Free Netwide Assembler NASM.

 MASM was at one point distributed with VC++. It is now distributed with some

 MASM is distributed with most versions of VC++. For the versions where it is

 Microsoft DDKs, for example the Windows NT 4.0 DDK and the Windows 98 DDK. If

 not included in VC++, it is also distributed with some Microsoft DDKs, for

 you do not have either of these DDKs then you can just download the binaries

 example the Windows NT 4.0 DDK and the Windows 98 DDK. If you do not have

 for the Windows 98 DDK and extract and rename the two files XXXXXml.exe and

 either of these DDKs then you can just download the binaries for the Windows

 XXXXXml.err, to ml.exe and ml.err and install somewhere on your PATH. Both

 98 DDK and extract and rename the two files XXXXXml.exe and XXXXXml.err, to

 DDKs can be downloaded from the Microsoft developers site www.msdn.com.

 ml.exe and ml.err and install somewhere on your PATH. Both DDKs can be

 downloaded from the Microsoft developers site www.msdn.com.

 NASM is freely available. Version 0.98 was used during testing: other versions

 NASM is freely available. Version 0.98 was used during testing: other versions

 may also work. It is available from many places, see for example:

 may also work. It is available from many places, see for example: