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Review and compare the different editions of Microsoft Internet Security and Acceleration Server 2006 to choose the one that's best for you.

Internet Acceleration and Security (ISA) Server 2006 builds on the previous version of ISA Server, as well as on Microsoft Windows Server technology, to provide a robust, effective, and easy-to-use firewall. Two versions are available: ISA Server 2006 Standard Edition and ISA Server 2006 Enterprise Edition.

The following table compares and contrasts the features of the two editions.

Feature

Standard Edition

Enterprise Edition

Scalability

Networks

Unlimited

Unlimited
Adds enterprise networks

Scale up

Up to 4 CPUs, 2-gigabyte (GB) RAM

Unlimited (per operating system)

Scale out

Single server

Up to 32 nodes through Network Load Balancing

Caching

Single-server store

Unlimited (through Cache Array Routing Protocol [CARP])

Availability

Windows Network Load Balancing (NLB) Support

Not supported

Yes (integrated)

Manageability

Policies

Local

Array and enterprise policies use Active Directory Application Mode (ADAM)

Branch office

Through the manual import and export of policy

Enterprise-level and array-level policies

Monitoring/alerting

Single-server monitoring console
Microsoft Operations Manager (MOM)
Management Pack

Multiserver monitoring console
MOM Management Pack

Multiple networks

Templates

Templates