ASP.NET creating strange URLs

[intonet]

I have a simple web site written entirely using ASP.NET 2.0. I'm seeing some very weird URLS in my server logs. Here's an extract from today: 1 http://www.intonet-technology.co.uk/(X(1)S(j4kgykmhswm0hy45oo4yu5ni))/Default.aspx 1 http://www.intonet-technology.co.uk/(X(1)S(np5ip2ffrq5zpa455wbgem45))/Default.aspx 1 http://www.intonet-technology.co.uk/(X(1)S(pmpsrw45lxwqc5aa23mqy4np))/Default.aspx 1 http://www.intonet-technology.co.uk/(X(1)S(gsqxw145kzj1c53nttxcap45))/Default.aspx 1 http://www.intonet-technology.co.uk/(X(1)S(mlyu3sfl01dwbyegilpvsrz0))/Default.aspx 1 http://www.intonet-technology.co.uk/(X(1)S(brkgw4y4dxr45h55urrdhx45))/Default.aspx 1 http://www.intonet-technology.co.uk/(X(1)S(rds3dl552lngp4blc0xei245))/Default.aspx 1 http://www.intonet-technology.co.uk/(X(1)S(gk4n3i55tsstta55aafcn2n3))/Default.aspx 1 http://www.intonet-technology.co.uk/(X(1)S(ejn5mu45y4nsyzukabzn4orw))/Default.aspx 1 http://www.intonet-technology.co.uk/(X(1)S(youl1fjghdcon355o0faji55))/Default.aspx 1 http://www.intonet-technology.co.uk/(X(1)S(klfvj555jytwl355yfedvc45))/Default.aspx Can anyone explain what the (X(1)S(blahblahblah)) bit is all about? - Tim Skipper

[Guffa]

How come that almost every time someone post about something "very strange", it is not strange at all... ;) The site is using cookie-less sessions, which puts the session id in the url.

Experience is the sum of all the mistakes you have done.

[intonet]

Thanks for the prompt answer! It's been infesting my Google listings which is the most annoying thing.