How to Assign Write Permissions to the Temporary ASP.NET Folder on the Web Servers
Follow these steps to assign write permissions to the Temporary ASP.NET folder. You assign write permissions for the Web site service accounts running on the Web server, such as the RunTimeUser account. Users will be unable to access the Web site if you omit these steps.
To assign write permissions to the Temporary ASP.NET folder on the Web servers
Click Start, click Run, type explorer, and then click OK.
In Windows Explorer, move to the <drive:>\Windows\Microsoft.NET\Framework\v2.0.50727 (or <drive:>\WinNT\Microsoft.NET\Framework\v2.0.50727, where appropriate) folder.
Right-click Temporary ASP.NET Files, and then click Properties.
In the Temporary ASP.NET Files Properties dialog box, on the Security tab, click Add.
In the Enter the object names to select text box, type <Domain or Computer name>\RunTimeUser, and then click OK.
Note
As appropriate, substitute the user name for the anonymous user account you created for "RunTimeUser".
In the Temporary ASP.NET Files Properties dialog box, in the Groups or user names list, select the RunTimeUser account.
In the Permissions for RunTimeUser list, select Write in the Allow column. (Read & Execute and Read should already be selected in the Allow column.) Click OK.
In the Security dialog box, click Yes.