Hey everyone.. my first post so go easy on me.. i tried searching for 'load generator' but didn't really find many threads soo here it goes.. We have a Windows Server 2003 Std x64 running Exchange 2007 that im running the Microsoft Exchange Load Generator on. When I run the initialization before the simulation I get the following(the text in the console is not copiable and it doesn't put this error into the log for some reason so im typing out what it displays on the console Window. The initialization of user mailboxes has failed with 1204 exceptions(I created 7 groups of 172 users = 1204 users). Please look at file LoadGenInit.log for details if you chose to save the detailed logging information. The initialization of public store has failed: Microsoft.Mapi>mapiExceptionInvalidParameter: MapiExceptionInvalidParameter: Unable to make connection to the server.(hr=0x80070057, ec=-2147024809) -----------The LoadGenInit log file is over 4MB big, I searched for the diagnostic context error and just pasted this one entry----------- Outlook2007Online Error: 0 : 9/19/2007 12:02:36 PM -- Microsoft.Mapi.MapiExceptionInvalidParameter: MapiExceptionInvalidParameter: Unable to make connection to the server. (hr=0x80070057, ec=-2147024809)Diagnostic context: Lid: 23234 Lid: 27970 StoreEc: 0x80070057 Lid: 17730 Lid: 25922 StoreEc: 0x80070057 at Microsoft.Mapi.MapiExceptionHelper.ThrowIfError(String message, Int32 hresult, Int32 ec, DiagnosticContext diagCtx) at Microsoft.Mapi.ExRpcConnection.Create(ConnectionCache connectionCache, ExRpcConnectionCreateFlag createFlags, ConnectFlag connectFlags, String serverDn, String userDn, String user, String domain, String password, String httpProxyServerName, Int32 ulConMod, Int32 lcidString, Int32 lcidSort, Int32 cpid, Int32 cReconnectIntervalInMins, Int32 cbRpcBufferSize, Int32 cbAuxBufferSize) at Microsoft.Mapi.MapiStore.OpenMapiStore(String serverDn, String userDn, String mailboxDn, Guid guidMailbox, Guid guidMdb, String userName, String domainName, String password, String httpProxyServerName, ConnectFlag connectFlags, OpenStoreFlag storeFlags, CultureInfo cultureInfo, Boolean wantRedirect, String& correctServerDN, ClientIdentityInfo clientIdentity, String applicationId) at Microsoft.Mapi.MapiStore.OpenPublicStoreNoRedirect(String serverDn, String userDn, String userName, String domainName, String password, ConnectFlag connectFlags, OpenStoreFlag storeFlags, CultureInfo cultureInfo, String& correctServerDN, WindowsIdentity windowsIdentity) at Microsoft.Exchange.Swordfish.Extensions.MapiCommon.MapiStoreUtil.<>c__DisplayClass6.<OpenPublicStore>b__4() at Microsoft.Exchange.Swordfish.IL.ILUtil.DoTryFilterCatch(ThreadStart tryClause, Predicate`1 filterClause, Action`1 catchClause) at Microsoft.Exchange.Swordfish.Extensions.MapiCommon.MapiStoreUtil.OpenPublicStore(User user, ConnectFlag connectFlags, OpenStoreFlag openStoreFlags) at Microsoft.Exchange.Swordfish.Extensions.MapiCommon.MapiUtil.ModuleInitPublicFolder(GlobalSettings gs) Any ideas? Suggestions? Please help.

Hello, You should create mailbox of Administrator.Loadgeneratordoesn'tcheckAdministrator's mailbox is available or not. See logs...

Hi, Try to enable Outlook Anywhere on your Exchange 2007 server as well. Exchange Management Console -> Server Configuration -> Client Access -> (Select Server) -> Enable Outlook Anywhere Janis

um...did you solve the problem? I also facing this problem, and followed the above method, but it still not solved. Thanks!