IF (TestRemove.Caption <> TRUE)  THEN  CaptionInstall.Visible := True;
IF (TestRemove.Caption = TRUE)  THEN  CaptionUninstall.Visible := True;
IF (TestRemove.Caption <> TRUE)  THEN  CaptionUninstall.Visible := False;
IF (TestRemove.Caption = TRUE)  THEN  CaptionInstall.Visible := False;