Increase Internet Explorer 7’s server download limit

By default, Microsoft’s Internet Explorer 7 is restricted to simultaneously download only 2 files from a single server. This is due to the fact that IE7 is coded such way to maintain web standards. Want to increase this limit? Try this registry trick:

Step 1: Click Start button and type Regedit
Step 2: Browse to HKEY_CURRENT_USER -> Software -> Microsoft -> Windows -> CurrentVersion -> Internet Settings
Step 3: Create a new DWord with the name MaxConnectionsPerServer (To create a new DWord, right click on the empty space found on the right side box -> Click New -> Click ‘DWORD 32 Bit Value‘)
Step 4: Create another new DWord with the name MaxConnectionsPer1_0Server
Step 5: Double click these new DWords you have created and set the decimal value higher than 2 and lesser than 10 (This number represents the maximum simultaneous download allowed)
Step 6: Restart and you are all set to have more simultaneous download from a server.

source: How to Increase the Number of Simultaneous Download Limit in IE7?