Hi,

Many of us could have encounterd problem while executing VB Scripts or WMI Queries from ISA Server and got “RPC Unavailable” error.

In order to allow DCOM traffic, you can create a rule in ISA to “Allow RPC to ISA from trusted servers”.

Disable “RPC strict compliance (to allow DCOM)” after which WMI Queries and VB Scripts execution will be successful.

Happy Learning!!!