I have listed below which Microsoft technologies are supported by Itron's Enterprise Edition Meter Data Management.

Architecture Tier

Product

Operating System

Client (Rich Client Userface)

Microsoft IE 6.x
Microsoft IE 7
Microsoft .Net Framework 2.0 SP1
Microsoft .Net Framework 3.0 SP1
Microsoft .Net Framework 3.5 SP1

Windows XP SP3 (32 +64 bit) 
Windows Vista (32 +64 bit) 
Windows 7 (32 +64 bit)

Application Server

IIS 6
Microsoft BizTalk Server

 Windows Server 2003 SP2 (32+64 bit)

Database Server

SQL Server 2005 (32 + 64 bit)
SQL Server 2008 (32 + 64 bit)

Windows Server 2003 (32+64 bit)
Windows Server 2003 R2 (32+64 bit)
Windows Server 2008 (32+64 bit) 
Windows Server 2008 R2 (64 bit) 

For further information, see here.