Procedure ScanDir(Dir:string);
var SearchRec:TSearchRec;
begin
if Dir<>'' then if Dir[length(Dir)]<>'\' then Dir:=Dir+'\';
if FindFirst(Dir+'*.*', faAnyFile, SearchRec)=0 then
repeat
if (SearchRec.name='.') or (SearchRec.name='..') then continue;
if (SearchRec.Attr and faDirectory)<>0 then
ScanDir(Dir+SearchRec.name) //we found Directory: "Dir+SearchRec.name"
else
Showmessage(Dir+SearchRec.name); //we found File: "Dir+SearchRec.name"
until Find(SearchRec)<>0;
FindClose(SearchRec);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
ScanDir('c:');
end;

procedure ScanDir (Path:string;SearchMask:TStrings;ScanSub:boolean);

var

SearchRec:TSearchrec;

a,i:integer;

begin

if ScanSub then

begin

FindFirst(path+'\*.*',faDirectory,SearchRec);{. found}

Find(SearchRec); {.. found}

a:=Find(SearchRec);

while a=0 do

begin

if (SearchRec.Attr and faDirectory)>0 then

ScanDir(Path+'\'+SearchRec.Name,SearchMask,ScanSub);

a:=Find(SearchRec);

end;{while}

FindClose(SearchRec);

end;{if}

for i:=0 to SearchMask.Count-1 do

begin

a:=FindFirst(Path+'\'+SearchMask[i],faAnyFile,SearchRec);

while a=0 do

begin

{operation on file}

a:=Find(SearchRec);

end;{while}

FindClose(SearchRec);

end;{for}

end; {ScanDir}