This can be found in the thread "My Favorite Tweaks". I'm not sure who posted it originally but any thanx goes to that person
This tweak will increase the number of max downloads to 10.
1. Locate the following key in the registry: HKEY_CURRENT_USER\Software\Microsoft\Windows\
2. On the Edit menu, click Add Value , and then add the following «Dword» values:
«MaxConnectionsPer1_0Server» = Dword:0000000a
«MaxConnectionsPerServer» = Dword:0000000a
3. Quit Registry Editor.
4. Reboot Always backup your registry before making any changes
You don't mess with download managers. Just install & run. Well there is a little bit of configuring but all simple. You are gonna wish you had one when you download a huge file & just before it finishes a BSOD or some other evil pops up & you have to start all over again. Just get one without spyware they are available.