void __fastcall TWebModule1::PageProducer1HTMLTag(TObject *Sender,
      TTag Tag, const AnsiString TagString, TStrings *TagParams,
      AnsiString &ReplaceText)
{
    if (TagString == "fd")
    {

        ReplaceText = Request->???     ;
    }
}

#include <stdio.h>
#include <dir.h>

int main(void)
{
    char *p;

    /* Looks for ILINK32 and returns a pointer
       to the path  */
    p = searchpath("ILINK32.EXE");
    printf("Search for ILINK32.EXE : %s\n", p);

    /* Looks for nonexistent file  */
    p = searchpath("NOTEXIST.FIL");
    printf("Search for NOTEXIST.FIL : %s\n", p);

    return  0 ;
}