How to run old x86 DOS assembly programs in 64-bits Windows?

Question

Several years ago I wrote some x86 DOS assembly programs as aid for Batch file programming. The programs are very small; about two or three hundred bytes in .COM version. I am now updating and creating new versions of those programs; however, the .COM or .EXE executable files don't run in 64-bits Windows versions. I need to know the simplest way to convert such programs so they run in 64-bits Windows. I know that DosBox may do that, but I need my programs run in Win cmd.exe Batch files. Anybody could help me? Thanks in advance!

Solution

Windows 64-bit will not allow 16-bit programs at all. You have to find another way.

http://msdn.microsoft.com/en-us/library/bb756962.aspx

https://superuser.com/a/140956

An x86 emulator was written in Javascript, so emulation would be viable; however I suspect it's much less work to port or rewrite the programs. http://bellard.org/jslinux/