Error While loading Sibeleus – Installation Folder is not writable.

After installing sibelius 5 we were getting the following error when loading it as a normal user.

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Native Instruments
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Installation folder is not writable. Please select a folder now

After clicking on Ok we would see the window below then get the error if the user were to cancel out of the browse for folder. This would happen for every user thereafter also.

To fix this permanently without giving the users admin permission, login as an administrator and navigate to the C:\program files folder and select the folders “Native Instruments”, “Neuratron Photoscore” & “Sibelius Software” by Ctrl+Left Clicking them.

Right Click and select Properties.

Select Yes to the Dialogue if it shows below.

Select Users from the list of usernames and tick the Modify permission and click on Ok

This product requires ASP.NET v2.0 to be set to ‘Allow’ in the list of Internet Information Services (IIS) Web Server Extensions.

When trying to install Microsoft Windows SharePoint Services 3.0 you receive the following error:

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Setup Errors
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Setup is unable to proceed due to the following error(s):
This product requires ASP.NET v2.0 to be set to ‘Allow’ in the list of Internet Information Services (IIS) Web Server Extensions. If it is not available in the list, re-install ASP.NET v2.0.
Correct the issue(s) listed above and re-run setup.

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OK
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In my case the .Net Framework was installed but it wasn’t in the Web Services Extensions list. I’m assuming this is because I installed IIS after the .NET framework.

To fix this error you will need to open up a command prompt window and change your directory to “C:\Windows\Microsoft.NET\Framework\v2.0.50727″ and run the command “aspnet_regiis.exe -i” as shown below.

After this command completes successfully you will need to open up IIS Manager and go to Web Service Extensions and mark “ASP .NET v2.0.50727″ as Allowed if it isnt already.