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Thursday, October 7, 2010 #

So I’ve been hearing a lot of folks (myself included) having issue with debugging there web application with VS 2010, Cassini (the VS web server) and IE9.  It looks like this


Well I found and easy solution, image that Winking smile.

Edit your hosts file at location c:\windows\system32\drivers\etc\hosts and make sure the localhost line is uncommented and the localhost ::1 is commented or deleted.

You can ping locahost host from a command line and make sure you see

Reply from bytes=32 time<1ms TTL=128
Reply from bytes=32 time<1ms TTL=128
Reply from bytes=32 time<1ms TTL=128
Reply from bytes=32 time<1ms TTL=128

After that you should be in business.  The problems seem to come from the fact that IE9 starts to fast (Image that!!) for cassini and with localhost not setup properly (in Windows 7 by default it seems to be commented out) it causes this issue.

Let me know if this solves you problems (it worked on different machines I tried it on).



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I just noticed I haven’t blogged in about 8 months… time flies when you have work to do.  Things are going well and I have a few bits of insight I’ll try to share in the coming months (ya ya to busy to blog, etc).  Anyway I wanted to say that I was renewed as an ALM MVP for the 6th year, I’m very happy about this obviously, I invest a lot of time in the Montreal community and with the ALM Team at Microsoft to make each version of the ALM suite just a bit better.  I will continue to drive the team and the community toward adoption of this great platform and raise the quality of the software we produce.

I have plans to create a series of short videos (with the great Camtasia product) so answer regularly asked questions on ALM subjects…

See you soon,




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