IIS 6 Administration
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The following table compares the features of IIS 5 and 6 by highlighting some of the key differences between the two platforms. For example, while both platforms support 32-bit processor architecture, only IIS 6 supports 64-bit Itanium processors, so only this difference is highlighted.
| Feature | IIS 5 | IIS 6 |
|---|---|---|
| ACLs on web content | IUSR account has Deny Write | |
| Application model | In-process, pooled process, or isolated processes | Multiple application pools |
| ASP.NET | New | |
| Passport authentication | New | |
| CDONTS | Replaced by CDOSYS | |
| Clustering | IISsynch.exe | Windows clustering |
| Fortezza | Removed | |
| Hardware architecture | Supports 64-bit | |
| Host process | DLLhost.exe | w3wp.exe |
| HTTP routing | Inetinfo.exe | Http.sys |
| Isolation mode | IIS 5 | Worker process and IIS 5 |
| Metabase | Binary | XML |
| Sample content | Found in IIS 6 Reskit | |
| Script engines | Disabled by default | |
| Security | IIS Lockdown Wizard | Web Service Extensions |
| Timeouts and Limits | Aggressive to repel DoS | |
| Web gardens | New | |
| Web permissions | Script source access (new) | |
| WMI support | New |
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