Hi Sergey,
thanks, yes (You throw me out writing an Update) ::).

My Solution:

In an overall Header file

*Problem with VFP 7.0, need to be cleared if solved:
#DEFINE TEXTMERGE _TextMerge

in my UDF file:

*If TEXTMERGE changed
#IFDEF TEXTMERGE
*Store old TEXTMERGE
 #DEFINE d_TextM TEXTMERGE
*CLEAR constant
 #UNDEF TEXTMERGE
#ENDIF &&TEXTMERGE

PROCEDURE _TextMerge
 PARAMETERS;
  tcString AS CHARACTER

  RETURN STRTRAN(TEXTMERGE(tcString+CHR(0)),CHR(0),'')
ENDPROC &&_TextMerge

*If TEXTMERGE changed
#IFDEF d_TextM
*ReStore old TEXTMERGE
 #DEFINE TEXTMERGE d_TextM
*CLEAR constant
 #UNDEF d_TextM
#ENDIF &&d_TextM

But watch out, this will harm the use of SET TEXTMERGE too! You have to #UNDEF before!

Agnes
>Hi Agnes,
>
>You can create a wrapper function MyTextMerge() and change all occurences of TextMerge() to MyTextMerge() in your application.