Free Convert Animated/image GIF to SWF

Yesterday, I made a .GIF animation with Microsoft GIF Animator. Now the presentation software I'm using doesn't accept .GIF files, only .SWF, this really make me crazy! Then I go to Web and ask this Q on many forum and Yahoo Answer, they give me some suggestions, now, I want to share this to you.

My Q is:
Is there a free way to help me convert the Gif animation into the .SWF file that my presentation software can use?

My requirements:
1: Software must be Free
2:No/Little Loss in quality
3: Must convert ALL of my animated GIF

Additional:
1: I don't have Shockwave Flash Editor or Photoshop to do it myself
2: It is an Animated Gif, not an image GIF
3: I already know how to Convert SWF to GIF

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The Suggestions from Web:

1: You can get Format Factory 2.60 It is a freeware down load that can convert most all other file's to the kind of file's you want.
I google it and find it here: formatozdotcom
Pros: Convert All to MP4/3GP/MPG/AVI/WMV/FLV/SWF; Version 2.80 has upgrade!
Cons: It takes too much time to download it.
Just free download to try by yourself to find more.

2: Try online free file conversion sites: zamzar.
However, I can convert the Gif animation and Gif image files well, but I can't find the SWF output formats. If anyone knows how to convert Gif animation to swf on Zamzar, please let me know, send the e-mail to supportathigosoftdotcom, then I will share here.

3: There is a Gif to Flash Converter 3000 Freeware
Gif to Flash Converter 3000 is a small but powerful GIF image file to Flash video (e.g. flv, swf) converter. It can help you free convert gif image files in batches. It can preserve original layout, text etc of your gif file.
However, I find this one is just a basic version, if you want to upgrade, you should pay for more function, this free version has many limits and the download progress is complex.

Finally, there software are all for Windows, I never find a freeware for Mac user to convert the GIF files to SWF, if anyone know more about this, could you please share with us(supportathigosoftdotcom)?

However, Higosoft also have a great video converter for mac that can help you convert all common video to SWF files on Mac Lion.