Business Methods written in Flex 4

Hello all,

We have a flash plugin which was developed using Flex Builder 4.0. The plugin loads properly in the Streamwork but only in FireFox browser and not in IE7 or IE8.

Could you please tell is there an compatibility issue with IE.

Secondly the Flashvars itemUuid are not getting to the Business method. Is it because of using Flex 4.0.

Could you please clarify this.

Thanks

Kind Regards

Chandan