MS-DOS Player for Win32-x64 (2014/08/28) is released. MS-DOS Player is MS-DOS emulator running on Win32-x64 command prompt. 16bit MS-DOS compatible commands can be exexuted on Win32-x64 envrionment.

MS-DOS Player for Win32-x64 (2014/08/28) Changelog (Google Translate):

For i386 core, I was fixed a memory leak had occurred. In addition, for FPREM / FPREM instruction of x87, it was fixed processing of flag to match the MAME 0.154.

Download: MS-DOS Player tested on Windows 7 (x64)(2014/08/28)
Source: Here