CWSDPMI is free DPMI-server from Charles W. Sandmann, 
which you can find on SimTel-ftp-sites.

CWSDPMI is here for the dos version of VFU.

VFU requires this under plain dos only, and it is 
required to be placed somewhere in the PATH or in 
the current directory. VFU runs standalone under 
Win9x (no CWSDPMI is required!)