Most Windows Hosting includes PHP support as well as ASP
Example
http://www.eukhost.com/windows-web-hosting.php
Windows Server Features

Windows 2008 Standard
IIS 7
ASP, ASP.NET 1.1, 2.0, 3.0, 3.5, 4.0
Coldfusion (Optional)
PHP 5.2.6 / MySQL 5.0.51
GD Library 2.0.33
SSI, CGI-BIN, PHP, Perl, Python
MS SQL 2005 Enterprise
MS ACCESS / ODBC Support
DSN Connection String