Vista - using Exchange Management Shell in c#

I am not sure where to post this question. Not sure if it belongs on a
development, exchange 2007, or powershell newsgroup. If this is the wrong
place please let me know where to go. Thanks.
Issue: I installed the Exchange Mgmt shell on a W2k3 server that houses my
development IDE. VS2005. Exchange 2007 is installed on a different server
"Ex07". On my dev box, in both the shell and in my c# code i can use the
command enable-Mailbox -Identity Domain\username -Database \\Ex07\SG1\DB1 and
it works. I can also get results for get-Mailbox. But when i try to use the
Get-MailboxStatistics -Server Ex07 command I get results only when using the
mgmt shell. When using my code i get an error. Here is the error I get via
the catch statement.

Failed to add mailbox account to Exchange for new user Andrea Q Rose; with
manager Manager Not Assigned; Error:
System.Management.Automation.CmdletInvocationException:
MapiExceptionLowLevelInitializationFailure: Unable to load exrpc32.dll or one
of its dependent DLLs (extrace.dll, exchmem.dll, msvcr80.dll, etc) --->
Microsoft.Mapi.MapiExceptionLowLevelInitializationFailure:
MapiExceptionLowLevelInitializationFailure: Unable to load exrpc32.dll or one
of its dependent DLLs (extrace.dll, exchmem.dll, msvcr80.dll, etc)
at Microsoft.Mapi.ExRpcModule.Bind()
at Microsoft.Mapi.ExRpcAdmin.Create(String server, String user, String
domain, String password)
at Microsoft.Exchange.Data.Mapi.ConnectionPool.GetAdministration(String
server)
at Microsoft.Exchange.Data.Mapi.MapiSession.get_Administration()
at
Microsoft.Exchange.Data.Mapi.MailboxEntry.<>c__DisplayClass3`1.<FindPaged>b__0()
at
Microsoft.Exchange.Data.Mapi.MapiSession.InvokeWithWrappedException(ParameterlessReturnle

In the evnt log of the dev box i get these two errors:
Watson report about to be sent to dw20.exe for process id: 2584, with
parameters: E12, c-RTL-x86, 08.00.0685.020, W.WebServer, M.E.StoreProvider,
M.M.ExRpcModule.Bind, M.Mapi.MapiExceptionLowLevelInitializationFailure,
a7b3, 08.00.0685.020

Process WebDev.WebServer.EXE (PID=2584). An remote procedure call (RPC)
request to the Microsoft Exchange Active Directory Topology service failed
with error 1753 (Error 6d9 from HrGetServersForRole). Make sure that the
Remote Procedure Call (RPC) service is running. In addition, make sure that
the network ports that are used by RPC are not blocked by a firewall.

I've tried everything I can think of. The rpc service is greyed out. I
can't stop and start it, but it is already started. I tried different
variations of the command and still nothing. I've tried other commands and
have not come across another one that has this issue.
Basically if i don't add the -server i get null results, but it doesn't
throw an error. Prob because it's not trying to connect to a remote machine.
Any help would be GREATLY appreciated. Thanks.