>>Here's a corrected version

lcTable = "mytable"
>>lcPath = "C:\mypath\"
>>
>>lnFH = FOPEN(lcPath + lcTable + ".dbf", 12)
>>
>>* Check if there is structural CDX
>>= FSEEK(lnFH,28)
>>
>>lnByte28 = ASC(FREAD(lnFH,1))
>>lnCDXStr = BITAND(lnByte28, 1)
>>
>>IF lnCDXStr = 1    && there is CDX
>>	IF FILE(lcPath + lcTable + ".cdx")
>>		ERASE (lcPath + lcTable + ".cdx")
>>	ENDIF
>>        = FSEEK(lnFH,28)
>>        = FWRITE(lnFH, Chr( BITAND(lnByte28, 0xFE) ))
>>ENDIF
>>
>>= FCLOSE(lnFH)
>>

Sorry, I got distracted by something and sent message before it was ready.
>
>Sorry for interfering... I guess, you wanted to update by yourself...

No problem :). I just copied a code from my test program. I'm pretty sure that code should work but you'll have to add error checking.