First, download an iis5.1installation package for Windows XP and unzip it to a directory. You will find that there is no setup.exeor instop.exe file, and you cannot directly install it;
Enter "C: \ WINDOWS \ INF \ sysoc. inf" in the running state. The system will automatically open the sysoc. inf file using notepad. Find "[components]" in sysoc. inf, and add "IIS = IIS. dll, ocentry, IIS. inf, and 7" below ". Save and close Step 3:
Put the two files IIS In the downloaded iis5.1 installation package. DL _ and IIS. copy in _ to a temporary directory (for example, c: \ AAA), change the suffixes of the two files to cab, and decompress all the files.
Solve IIS. DLL and IIS. after the two files are INF. copy inf to the c: \ windows \ INF directory and set IIS. copy the DLL to the c: \ windows \ system32 \ setup directory.
"START-> Settings-> Control Panel-> add or deleteProgram-> Add/delete Windows Components. "IIS appears.