[[escafandra]]

Si tu app usa el campo versión en tu ejecutable, puedes averiguar la versión de esta forma (Conocer la versión de un programa):

Código Delphi [-]
uses
  Windows, ...;

type
TVersion = record
  major: DWORD;
  minor: DWORD;
  release: DWORD;
  build: DWORD;
end;

implementation

function GetVersion(FileName: String; var Version: TVersion): boolean;
var
  dwHandle: DWORD;
  verInfo: PVSFIXEDFILEINFO;
  Data: Pointer;
  verSize, dataSize: DWORD;
begin
  Result:= false;
  ZeroMemory(@Version, sizeof(TVersion));
  dwHandle:= 0;
  dataSize:= GetFileVersionInfoSize(PCHAR(FileName), dwHandle);
  GetMem(Data, dataSize);
  if GetFileVersionInfo(PCHAR(FileName), dwHandle, dataSize, Data) then
  begin
    if VerQueryValue(Data, '\', Pointer(verInfo), verSize) then
    begin
      if verSize > 0 then
      begin
        if verInfo.dwSignature = $FEEF04BD then
        begin
          Version.major:= verInfo.dwFileVersionMS shr 16;
          Version.minor:= verInfo.dwFileVersionMS and $FFFF;
          Version.release:= verInfo.dwFileVersionLS shr 16;
          Version.build:= verInfo.dwFileVersionLS and $FFFF;
          Result:= true;
        end;
      end;
    end;
  end;
  FreeMem(Data);
end;

function GetVersionString(FileName: String): String;
var
  Version: TVersion;
begin
  GetVersion(FileName, Version);
  Result:= Format('%d.%d.%d.%d', [Version.major, Version.minor, Version.release, Version.build]);
end;

Saludos.