Author: Lou Adler

I am trying to populate a TStringlist with files matching *.pas;*.dfm;*.dpr etc. 
from the current folder which is easy enough, but I also want to search sub folder 
for the same file types and keep their folder structure so that I can copy all the 
files in one go to another folder and then to CD for extra backups.

Answer:
1   
2   procedure GetFileList(const Path: string; const Extensions: string; FileList:
3     TStrings);
4   var
5     SR: TSearchRec;
6   begin
7     if FindFirst(Path + '*.*', faAnyFile, SR) = 0 then
8     try
9       repeat
10        if (SR.Attr and faDirectory) > 0 then
11        begin
12          if SR.Name[1] <> '.' then
13            GetFileList(Path + SR.Name + '\', Extensions, FileList)
14        end
15        else if Pos(UpperCase(ExtractFileExt(SR.Name)), Extensions) > 0 then
16          FileList.Add(Path + SR.Name);
17      until
18        FindNext(SR) <> 0;
19    finally
20      FindClose(SR);
21    end;
22  end;
23  
24  //Usage:
25  
26  GetFileList('c:\', '.PAS .FRM .DPR', MyStringList);