log4net or logging application block

some information here at:
http://www.codeplex.com/entlib/Thread/View.aspx?ThreadId=10534

pros and cons:
http://weblogs.asp.net/lorenh/archive/2005/02/18/376191.aspx

a thread:
http://www.codeplex.com/entlib/Thread/View.aspx?ThreadId=11300

IIS on XP allowing upto 40 connection

Here is a blog that describes the issue:

http://weblogs.asp.net/cazzu/archive/2003/10/10/31476.aspx

Following command is described in it to set max upto 40:

adsutil set w3svc/MaxConnections 40