Solution to IIS installation failure caused by unable to copy staxmem. dll

When installing IIS today, you are always prompted that you cannot copy staxmem. dll, and IIS cannot be installed. However, this file is not available in c: \ windows \ servicepackfiles \ i386. However, after several attempts, the solution is finally found:

(1) Start> RUN> Enter cmd> then enter the following command:

Esentutl/P % WINDIR %/security/database/SeCEdit. SDB

(2) The following information is output on the screen:

Microsoft (r) Windows (r) Database Utilities
Version 5.2:
Copyright (c) Microsoft Corporation. All rights reserved.

Initiating Integrity mode...
Database: L: \ windows \ SECURITY \ database \ SeCEdit. SDB
Temp. Database: tempinteg2680.edb

Checking database integrity.

Scanning status (% complete)
0 10 20 30 40 50 60 70 80 90 100
------------------------------
........................................ ...........
Integrity check successful.
Operation completed successfully in 0.841 seconds.
(3) Insert the installation disk and try again. The problem is fixed.