IIS Launch Condition In Web Setup Project

I'm developing Web Setup for my .NET 2.0 web application with VS 2005, and it has some prerequisites (.NET 2.0, Sql Server Express,and Windows Installer). 开发者_StackOverflow社区 My question is :how to check IIS launch condition before prerequisites?

---

it work for me in VS2010.

in solution explorer, right click on Setup project. select View->Launch Condition.

in Search Target machine.

Add registry Search for Major version:

Name: Search for IIS Major Version  
Property: IISMAJORVERSION  
RegKey: SYSTEM\CurrentControlSet\Services\W3SVC\Parameters  
root: vsdrrHKLM  
Value: MajorVersion 

Add Registry Search for Minor version:

Name: Search for IIS Minor Version  
Property: IISMINORVERSION   
RegKey: SYSTEM\CurrentControlSet\Services\W3SVC\Parameters  
root: vsdrrHKLM  
Value: MinorVersion  

in Launch Conditions Add new Item with this value:

name: IIS Condition  
Condition: (IISMAJORVERSION >= "#5" AND IISMINORVERSION >= "#1") OR IISMAJORVERSION >= "#6"  
Message: This program need to IIS version 5.1 or above