Network Bridge with two different ISP's, How to double the transfer speed?

[Juako]

Well, I currently have a setup with two modems with different ISP's for each one, they are plugged in with different Network Cards. One of them is connected through a router to the computer and the other is connected directly to the computer without any router. I made a Network Bridge with these two connections so I can use both at the same time. I heard that it is possible to double your transfer speed if you make a bridge with two different connections, but so far I don't notice any difference at all. They work at the same time , but I don't think they can double any speed, the modems just communicate with each other as a network.

Is there any way that I could use this bridge to be able to double my internet transfer speed? Or any way to assign a program to download from one connection and another program to download from the other?

thanks in advance

[Krispy Kritter]

The real question is double the transfer speed doing what?

Most apps won't reocgnize or utilize 2 connections. The traffic will take one route or the other. Even if you could get the traffic to split across both connections (assuming it could somehow arrive at the destination in sync), the destination would see traffic arriving from two different IP's and treat them as separate connections.