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Asked: 2026-05-11T09:19:06+00:00

Related to a previous issue that I thought was resolved and actually isn’t… My

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Related to a previous issue that I thought was resolved and actually isn’t…

My Visual Studio 2008 installation may be a bit messed up, I think.

  1. When my ASP.NET project is set up to use VS Dev Server with a fixed port, I get the ‘Port in use’ error described in the linked question.
  2. When my project is set up to use a random (auto-assigned) port number, it works, but it launches the browser using a port number 3 less than the actual Dev Server port number (e.g. if the port number is 1903, the browser launches to http://localhost:1900/)
  3. If I make changes to the project settings, they do not ‘take’ until I save and restart Visual Studio.

Any ideas how to track this one down?

Thanks!

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1 Answer

  1. I had a similar problem which hit my 2 main machines at the same time. On investigating I found it to be related to the Eset personal security (guessing a recent update messed something up). To solve it I excluded VS2008 from the active browser filtering – this is in: setup -> advanced firewall setup -> antivirus & anti spyware -> web access protection -> HTTP -> webbrowsers

    Deselecting vsdev in here fixed the problem – interestingly enough disabling the firewall and antivirus / antispyware did not solve the issue, so it is worth looking for a similar setting if you are running different security software

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