Content:
Content-Type: text/html
Content-Length: 163
myHeader: myValue
Date: Thu, 03 Feb 2005 16:44:33 GMT
Server: Apache-Coyote/1.1
Regex: myHeader: (.*)
Comment: (.*) means "any character, except the newline character". The brackets are required to define a group. Extract the header value in NeoLoad using $1$.