# Flex 4.5 preloader (swf download progress bar) is gone?

**URL:** <https://forum.kirupa.com/t/flex-4-5-preloader-swf-download-progress-bar-is-gone/322426>\
**Category:** flash\
**Created:** [May 20, 2011, 12:54pm UTC](https://forum.kirupa.com/t/flex-4-5-preloader-swf-download-progress-bar-is-gone/322426 "2011-05-20T12:54:35Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![cpthk](https://avatars.discourse-cdn.com/v4/letter/c/aca169/32.png) [@cpthk](https://forum.kirupa.com/u/cpthk)\
**Post date:** [May 20, 2011, 12:54pm UTC](https://forum.kirupa.com/t/flex-4-5-preloader-swf-download-progress-bar-is-gone/322426/1 "2011-05-20T12:54:35Z")

</div>

In flex 4.0/4.1, there is always the application preloader. (swf download progress bar) I just upgraded to flex 4.5 SDK, and I immidiately noticed that the preloader is gone. Anyone noticed that? I double checked by going back to 4.0 again, and confirmed that it showed up in 4.0 and 4.1, but not in 4.5.

I tested more and found that if I do:

```auto
preloader="mx.preloaders.SparkDownloadProgressBar"

```

the loading bar will NOT show up.

If I do

```auto
preloader="mx.preloaders.DownloadProgressBar"

```

the loading bar will show up.