mfsort 114

Hi,
I have a mfsort (32 bit) that sometimes with the same input give rts 9/114:

Execution error : file 'extsm'
error code: 114, pc=0, call=1, seg=0
114     Attempt to access item beyond bounds of memory (Signal 11)

TEMP=d:\test114
TMP=d:\test114
SORTSPACE=100MB
SORTTEMPSPACE=100MB

extfh:
FILEMAXSIZE=8
BASENAME=ON
SEQDATBUF=1024000

the command line:
mfsort.exe use d:\test114\SRP.dat RECORD(V,1,27990) ORG(SQ) give d:\test114\SRP.srt RECORD(V,1,27990) ORG(SQ) SORT FIELDS=(91,16,CH,A,1,56,CH,A)


because it does not have always the same behavior ?
depends on what?

Note that this error has occurred twice on 2 different Windows virtual machines ( VMware )

It may be an error related to the slow network?

Thanks