ASP. NET "server application unavailable" full solution

The error message is as follows:

The server application is unavailable.

Your attempt to access the Web application on this web server is not currently available. Click the "refresh" button in the web browser to retry your request.

Administrator Note: The system event log of the Web server can find the error message that details the cause of this specific request failure. Check this log entry to find the cause of this error.

 

Refer to the many solutions on the Internet. The following steps are still invalid after you try them one by one.

(1 ). Re-register aspnet_wp.exe in IIS.

(2 ). Remove the kb886903 patch. (The Patch Is Not Installed)

(3 ). Network Service permission issues.

(4 ). Add the ASPNET account permission.

(5 ). Detach an application pool. (There are multiple frameworks such as 1.1 and 2.0 on the machine)

(6 ). Internet Guest Account permissions.

(7 ). Add everyone and users with full permission control. (I have tried this very unreliable solution)

 

 

Finally, find a solution on the MS website.

 

To solve this problem, grant the ASPNET account sufficient permissions for the parent directory and sub-directories of ASP. NET 1.1 applications. To do this, follow these steps:

1. In Microsoft Windows Resource Manager, find the parent folder of the ASP. NET 1.1 Application.
2. Right-click the folder and then clickAttribute.
3. ClickSecurityTab.
4. InGroup or user nameBox, clickASP. NET computer account.

   IfASP. NET computer accountNoGroup or user nameIn the dialog box, perform the following steps:

   1. ClickAdd.
   2. TypeComputer_name\ ASPnet, and then clickOK.
5. InPermissionBoxAllowSelect the following check boxes in the column:
   • ReadCheck box
   • InRead and executeCheck box
   • List folder contentCheck box
6. ClickAdvanced.
7. ClickPermissionTab.
8. Click to selectReplace all sub-object permission items that can be applied to sub-objects.And then clickApplication.
9. ClickOK

Address: http://support.microsoft.com/kb/919075/zh-cn

Note The Marked Area in red in the figure:

Check and confirm. Tip:

Solve the problem.

It is estimated that the problem is caused by permission inheritance.