Possible enumeration values:

NameValueDescription
BeginRequest

1

AuthenticateRequest

2

AuthorizeRequest

4

ResolveRequestCache

8

MapRequestHandler

16

AcquireRequestState

32

PreExecuteRequestHandler

64

ExecuteRequestHandler

128

ReleaseRequestState

256

UpdateRequestCache

512

LogRequest

1024

EndRequest

2048

SendResponse

536870912