Hi Cetin
It's the vfp TextMerge command (not mailmerge). Sorry!
The reason Word mailmerge is slow is because of automation & also that word doesn't recognize vfp tables. (ODBC is slow).
We used to call it "emulation" in maniframe days <g>.

Here is the code in the OK.Click button:
(It's messy because I tried printing using the dos print command (???) and tried using ShellExecute. (Among other things)
*=======================================
local m.recno, afile, m.lctemp, m.count
*--------------

if m.ToFile = .F.
m.filename = SPACE(20)
thisform.text1.refresh
if empty(gcMergeFile)
gcMergeFile = "textmerg.prn"
endif
afile = sys(5)+curdir()+gcMergeFile

* wait window afile

if file(afile)
erase(afile)
endif
else
afile = m.filename
endif

SET CONSOLE OFF

SET PRINTER OFF & as per Tamar's advice
SET PRINTER TO (afile)
SET TEXTMERGE TO (afile)
SET TEXTMERGE ON NOSHOW
WAIT WINDOW "Preparing report...Please wait" NOWAIT
SET TEXTMERGE DELIMITERS TO
SET MEMOWIDTH TO 80
IF thisform.prnscope.value = 1
\\<>
ELSE
IF NOT EMPTY(forexpr)
forexpr = "FOR "+forexpr
ENDIF
IF NOT EMPTY(whileexpr)
whileexpr = "WHILE "+whileexpr
ENDIF

SELECT (m.savearea)
m.recno = RECNO()
m.count = 0
SCAN &forexpr &whileexpr
if m.count > 0
\<>
else
\\<>
endif
m.count = m.count + 1

if m.count > gntemp1
wait window "m.count="+str(m.count)
exit
endif

EJECT PAGE
ENDSCAN
GOTO RECORD m.recno
ENDIF
SET CONSOLE ON
SET PRINTER off
SET PRINTER TO
SET TEXTMERGE OFF
SET TEXTMERGE TO
if m.ToFile = .F.
WAIT WINDOW "Printing the report..." NOWAIT
m.lctemp = filetostr(afile)
* wait window "len="+str(len(m.lctemp))
* replace letters.memotemp with filetostr(afile)
* ??? (m.lctemp)
=ShellExecute(0,"Print",(afile),"","",0)
messagebox("Printing NOT working at this time!",48, ;
"Work in progress")
endif
* modi file (afile)

IF AT("FOR",forexpr)<>0
forexpr = SUBSTR(forexpr, AT("FOR",forexpr)+4)
ENDIF

IF AT("WHILE",whileexpr)<>0
whileexpr = SUBSTR(whileexpr, AT("WHILE",whileexpr)+6)
ENDIF

m.ToFile = .F.
m.filename = SPACE(20)
thisform.refresh

SELECT letters
RETURN
*=======================================