## 3.7. Controlling Virtual Hosts on Win32

The Win32 version of Apache runs a parent version of the code and a single multi-threaded child that handles all requests.

### 3.7.1. ThreadsPerChild

>     ThreadsPerChild number
>     Default number: 50
>     Server config

Currently this directive is only relevant to Win32. You may need to increase this number from 50, the default, if your site gets a lot of simultaneous hits. The name `ThreadsPerChild` may suggest that there can be more than one child process in a Win32 installation, but this is not currently the case.[32]

> [32]If you really want to know: Win32 will not distribute requests among multiple children like Unix does. The first process to open a port gets all the connections, whether it is ready for them or not. Microsoft claims this is a Good Thing. We're not so sure.

Copyright © 2001 O'Reilly & Associates. All rights reserved.