Delete and install IIS.

The fault is that when you use a browser to download files in the "*. Cab" or "*. rar" format in the company's management system, a message indicating a task failure occurs. ProgramAnd documents cannot be processed in a timely manner.

Downloading "picky eaters", file corruption is the root cause
An error occurs when downloading some format files. This problem is generally caused by a problem with the files in the data format processed by the IIS server. After checking, the metadata. dll and metabase. xml files in the "system32 \ inetsrv" directory are damaged.

Tip: You can use the SFC command in Windows or other file integrity check tools.

Restore IIS, delete the file first, and install it more securely.

I started to follow the previous solutions to delete "Internet Information Service" (IIS) in "add or delete programs" and then reinstall it directly (that is, overwrite the installation method) "Internet Information Service" still cannot solve this problem.

After several attempts, I found that after deleting "Internet Information Service", I restarted the server and press "F8" to select security mode. In security mode, I set "C: \ inetpub "," C: \ windows \ system32 \ inetsrv ", and" C: \ WINDOWS \ iis6.log "directories and files are renamed.

Tip: the function of renaming is to prevent "Internet Information Service" from using existing folders and some files during re-installation, and re-create all folders and files, you can also retain the original files.

Next, restart the server, install "Internet Information Service" in normal mode, and then reconfigure IIS to solve the problem. Finally, delete the renamed file.