In ColdFusion 10 Standard the Simultaneous requests should be equals to 10 or more than 10 however in ColdFusion 10 Enterprise there is no such restriction, the value can be of a single numeric digit as well like 5,4,6 or so on.
You can consider this as a benefit of running ColdFusion 10 enterprise
ColdFusion stores those settings in the XML file C:\ColdFusion10\cfusion\lib\neo-runtime.xml. Follow the usual procedure to back up a file before editing it.
Open the file in a text editor. The entry you need to locate looks like this:
Change the value to 5.0, and restart ColdFusion. Return to the Administrator and verify whether the change has stayed.