>I changed aBWFile to aBWFiles in the LOCAL declaration. I also set the path as follows:
>
>

#DEFINE SOURCEPATHNAME = "c:\BW\"  && this is the BW Directory with absolute path

>
>Yet got the "Missing Operand" on the following line:
>
>

nFiles = ADIR(aBWFiles,SOURCEPATHNAME + SOURCEFILEMASK)

Try this instead. It isn't needed in VFP7, but perhaps some earlier version won't allow you to specify a path:

<pre>#DEFINE SOURCEPATHNAME = "c:\BW\"  && this is the BW Directory with absolute path

#DEFINE SOURCEFILEMASK = 'PROCESS*.DAT'
LOCAL cOldPath, nFiles, aFiles[1,5], cConCatString, i
cOldPath = FULLPATH(CURDIR())
CD (SOURCEFILEPATH)
nFiles = ADIR(aBWFiles,SOURCEFILEMASK)
cConCatString = ''
CD (cOldPath)
>
>
>
>>
>>>>

#DEFINE SOURCEFILEMASK = 'PROCESS*.DAT'
>>>>cConCatString = ''
>>>>nFiles = ADIR(aBWFiles,SOURCEPATHNAME + SOURCEFILEMASK)
>>>>FOR i = 1 TO nFiles  && this avoids all copies if no files were found
>>>>   cConCatString = cConCatString + FILETOSTR(SOURCEPATHNAME + aBWFiles[i,1])
>>>>ENDFOR
>>>>=STRTOFILE(cConCatString,'MyConCatFile.DAT',.F.)  && .T. would append to any existing MyConCatFile.DAT found
>>>>RELEASE cConCatString  && releases the large string memory allocation