IIS7 / WordPress URL Rewrite with Redirect from domain.com to www.domain.com

I am trying to correct a 302 redirect on my domain.com to http://www.domain.com.

To start, I am completely UNSURE where this redirect is coming from as it is not setup in any files that I can find.

This is my current web.config file:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
	<system.webServer>
		<rewrite>
			<rules>
				<rule name="wordpress" patternSyntax="Wildcard">
					<match url="*" />
						<conditions>
							<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
							<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
						</conditions>
					<action type="Rewrite" url="index.php" />
				</rule>
			</rules>
		</rewrite>
    </system.webServer>
</configuration>

This is the potential solution I have found through a lot of googling and reading:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
	<system.webServer>
		<rewrite>
			<rules>
				<rule name="Redirect to WWW" stopProcessing="true">
					<match url=".*" />
					<conditions>
						<add input="{HTTP_HOST}" pattern="^domain\.com$" />
					</conditions>
					<action type="Redirect" url="http://www.domain.com/{R:1}" redirectType="Permanent" />
				</rule>
				<rule name="wordpress" patternSyntax="Wildcard">
					<match url="*" />
					<conditions>
						<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
						<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
					</conditions>
					<action type="Rewrite" url="index.php" />
				</rule>
			</rules>
		</rewrite>
    </system.webServer>
</configuration>

Before I go ahead and start implementing this, I was hoping for a comment from the community on whether or not this is the right direction.

Thanks!