Selector configuration windows server 2003

Hi friends,

In the server switch, I configured with the name "Win32 ". In the details of the switch position as follows:
Type: Standard Property
Name: OS_SYSNAME
Operator: CONTAINS
Value: Windows
Required: Yes

When I run the project, there are steps running. And check the message log tells me: "SELECTOR: 1856: Could not find any server that matches all the conditions for the selector Win32"

Anyone know what happens? :shock:

thanks!!