Desktop Wallpaper - Animated Tiff

I am working in C# and have the IActiveDesktop implanted and everything is working. But now I need to place an animated tiff file as the wallpaper. I know that that isn't possible so I am wondering if anyone here would have any idea how to solve this problem. Using an animated gif isn't possible because the amount of different colors is over 256 and limiting to that range doesn't work very well.

So any ideas?

I'm not sure if this works with gifs or tiffs.

Code:

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BOOL SetWallpaper(char *pszImagePath) {
  return SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, PVOID(pszImagePath), SPIF_UPDATEINIFILE);  }

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Thanks for the suggestion Yarin but I'm sorry to say it didn't work for my animated tiff file. I'm begining to think I may need a new approach to this.

I didn't know TIFF files could be animated. Kind'a cool. Which OS are you testing this on? Was just thinking, I think Vista doesn't have ActiveDesktop anymore. Not sure though.