Hi Ian,
Based on my research and experience, please try the following steps on your
side.
1. Please delete the ASPNET account using Computer Management.
a) Select Control Panel->Administrative Tools->Computer Management->Local
Users and Groups->Users
b) In the right pane, right click the ASPNET account and select "Delete"
2. Please refer to the following Knowledge Base article carefully to repair
IIS mapping.
<http://support.microsoft.com/default.aspx?scid=kb;en-us;306005>
3. Please restart IIS.
a) Select Start->Run...
b) Type the command "iisreset".
4. Try to create a Web application.
I am looking forward to your result.
Best regards,
Jacob Yang
Microsoft Online Partner Support
Get Secure! -
www.microsoft.com/security
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