News: 11 March 2016 - Forum Rules

Author Topic: For which program or situation do I need cwsdpmi.exe?  (Read 670 times)

Sebastian_L

  • Newbie
  • *
  • Posts: 1
    • View Profile
For which program or situation do I need cwsdpmi.exe?
« on: December 30, 2020, 06:36:53 am »
Hello,

A few years ago I started in learning about programming NES and using dosbox.

Then I got ill and can't do it for a long time.

Now I am looking through my folders and saw a cwsdpmi file. Could someone please help me. Where do I need it for?

The only thing I know I used cmd or dosbox and it said cwsdpmi was not found. So I downloaded it and used it before using the other program.

So could someone please help me.

Thank you in advance.

KingMike

  • Forum Moderator
  • Hero Member
  • *****
  • Posts: 7213
  • *sigh* A changed avatar. Big deal.
    • View Profile
Re: For which program or situation do I need cwsdpmi.exe?
« Reply #1 on: December 30, 2020, 10:13:12 am »
I recall it was a pretty commonly used file in DOS games, or I would guess DOS graphics (not text mode) apps.
"My watch says 30 chickens" Google, 2018

Jorpho

  • Hero Member
  • *****
  • Posts: 5006
  • The cat screams with the voice of a man.
    • View Profile
Re: For which program or situation do I need cwsdpmi.exe?
« Reply #2 on: December 30, 2020, 11:18:44 am »
Did you not read https://en.wikipedia.org/wiki/CWSDPMI ?

If it's not obvious, in olden times developers would leave common files like that out of a program's distribution to make the size smaller, and expect the end-user to find it independently.

Windows also provides its own DPMI server, so programs that were intended to be run from the MS-DOS prompt in Windows may also not include CWSDPMI.

Very, very old versions of DOSBox had some problems with DPMI, but those problems were fixed a long time ago.
This signature is an illusion and is a trap devised by Satan. Go ahead dauntlessly! Make rapid progres!