COM

Hi Hush, You may be registering the exe on your machine rather than the remote machine. You need to run "dcom.exe /regserver" from the client and FROM the server. This can not be done remotely (as far as I know?). I have come across this problem often enough to include the following code in the remote classes to tell me where it is running. // *************************************************************************** //DESCRIPTION: // Return the machine name of the machine running this code. //PARAMS: // *pbsrtMachine Name returned here //RETURN: // Standard HRESULT //CREATED: // 1-2-2001, 16:51:31 by john@mctainsh.com // *************************************************************************** STDMETHODIMP CWhereAmI::GetMachine(BSTR *pbstrMachine) { ATLTRACE( _T("CWhereAmI::GetMachine(%p)\n"), pbstrMachine ); ATLASSERT( pbstrMachine ); USES_CONVERSION; //Get my name DWORD dwComputerNameLength = MAX_COMPUTERNAME_LENGTH + 1; TCHAR szComputerName[MAX_COMPUTERNAME_LENGTH + 2]; if( GetComputerName( szComputerName, &dwComputerNameLength ) ) szComputerName[dwComputerNameLength] = NULL; else _tcscpy( szComputerName, _T("Unknown") ); *pbstrMachine = SysAllocString( T2W( szComputerName ) ); return S_OK; } --------------------------------------------------- I have a note on DCOM remoting at http://www.mctainsh.com/COM/SmartPtr3.aspx The hardest thing I find is getting security correct. Let me know how you get on... Have a great day! http://www.mctainsh.com

Hi, (1) Your interfaces which uses structs or other defined types must me custom defined. (2) The only place where you must define your structs is the .idl file (see below). (3) Don't forget to compile your PS.mk (Visual Studio generatied make file) (4) Use CoTaskMemAlloc() and CoTaskMemFree() to transfer the struct data (example shows an array of structs) Success Aat EXAMPLE // YourServer.idl : IDL source for YourServer.dll // // This file will be processed by the MIDL tool to // produce the type library (YourServer.tlb) and marshalling code. import "oaidl.idl"; import "ocidl.idl"; typedef struct { int iType; int iValue; // E.t.c. } YOURSTRUCT; // .... [ object, uuid(BECF60B9-2741-11D4-A05E-00B0D0201DD6), helpstring("IYourObject Interface"), pointer_default(unique) ] interface IYourObject : IUnknown { [helpstring("method Read")] HRESULT Read([out,size_is(,*plNumStructs)] YOURSTRUCT** ppYourStructs, [in, out] long* plNumStructs); [helpstring("method Write")] HRESULT Write([in,size_is(lNumStructs)] YOURSTRUCT* pYourStructs, [in] long lNumStructs); };

I have seen a similar problem before. In our case what had happened was that the .rgs file in the project was incorrect! That is it had different ID's to the actual interface! So when we registered it the registry entries were wrong. So, I suggest you check that the .rgs iids all match what the client is actually requesting. If there is not a match then I suggest you create a NEW project an add all your code to it, then re-compile the client(s). If this is not an option then you need to manually make sure that your server code has the iids that the client is asking for. (Find in files *.* all matchs for the previous iids, just to make sure). BTW: Really really make sure that the registry is clean, this is very important. So you should : Make sure that it is not running (or for DLL's not loaded). Deregister it. Then search the registry for old stuff (CLSID and Appid) Let us know how you go.

Eric, Check out: http://codeproject.com/dll/libdump.asp GEorge

1. In MSDN, the latest version possible. 2. In msdn, try to search "ATL AND MMC" - you will find something like "writing an mmc snap in using atl 3.0" - a very good text 3. In internet, a very very very limited amount of info, may be 2 pages ps: I was writing a snap in durin 4 monthes and i did it, i did it,... cool. feel free to contact me by email reznitskiy@softlab.ru:-O

You cannot prevent _any_ user to exit from mmc. The only way to try something - is to make a "User mode, limit access".

In ATL, your CA class is an abstract base class - it doesn't have implementations of the IUnknown methods, as you've found out from the compiler errors. See KB article Q181265 for the steps you take to make a new object. Basically, you instantiate a CComObject<CA> instead - CComObject provides the IUnknown implementation. --Mike-- http://home.inreach.com/mdunn/ "That probably would've sounded more commanding if I wasn't wearing my yummy sushi pajamas."   --Buffy

I would recommend OmniORB (www.omni.org) It is free. But as another replied you will never achieve the same performance as you can with raw TCP/IP. That said, we are running 5000 requests a second on a PIII/500 using omniORB. Christian Skovdal Andersen

Thank you, Thank you Thank you. I've got it working at last. One of the problems I had with the error message was because I needed to include the atlbase.h header as well. Chreers