If you encounter persistent crashes or need modern security (like robust SSH), consider these Windows 11-native alternatives: ZOC Terminal
: Many modern USB-to-Serial adapters assign port numbers higher than COM 4. Since older versions of Procomm may only recognize COM 1 through 4 by default, you must go into the Windows Device Manager , find your adapter, and manually reassign it to a lower port number (like COM 2).
terminal software from the 1980s and 90s, and the sleek, modern interface of Windows 11 The Relic in the Machine procomm plus windows 11
Create a new, dedicated folder at the root level, like C:\ProcommPlus .
: While "Run as Administrator" can solve some permission issues, it may prevent other users from controlling the application during screen-sharing sessions like MS Teams or Webex. Using a non-protected folder usually removes the need for elevated privileges. Modern Alternatives If you encounter persistent crashes or need modern
(versions 4.8, 5.x) does not run natively on Windows 11. It is a 16-bit or early 32-bit application that relied on components Windows 11 no longer includes. You cannot simply install the original CD or floppy disks.
Right-click the PW4.exe executable, select Properties , and set it to Run as Administrator . : While "Run as Administrator" can solve some
The most beloved versions of Procomm Plus—specifically (DOS-based) and Procomm Plus for Windows 1.0 —were built on 16-bit architecture. Windows 11, like Windows 10 before it, is exclusively 64-bit. Microsoft removed the NTVDM (NT Virtual DOS Machine) entirely. This means Windows 11 cannot run 16-bit applications natively. Trying to launch a 16-bit Procomm Plus executable will immediately result in an error message: "This app can’t run on your PC."