If you have a fresh install of .NET on your machine and you
can't get your app working - eg. umbraco 4.6+ project - this may
indicate that .NET 4.0 isn't register with your IIS 7 yet.
First thing to check is whether .NET v4.0 appears under ISAPI
and CGI Restrictions in your IIS console.
![IIS](/media/12068/iis_500x215.jpg)
If you can't see .NET listed (see above) you need to run
following command in cmd:
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -ir
Once you've done that, all you have to do is enable ASP.NET
v4.0xx in ISAPI and CGI Restrictions.
Tagged: .NET 3.5
.NET 4
IIS
IIS 7
internet information services
umbraco 4.7.x
windows development