Thanks for the reply. I'm not familiar with singleton's. Can you refer me to a source? I looked up singleton in MSDN, what I found didn't seem to apply.

I agree about using the forum. I've learned as much from some of my answers as I have from my questions.:omg: Bill

My app is a service running on NT. It has no UI, so I don't think its a GDI leak. Do you have any suggestions on how to detect/isolate the other possiblities for leaks? I don't know how to monitor the rest of the memory usage. Thanks for the help, Bill

Solon's suggestion put me on the right track. There are 3 modes in which to register: REGCLS_SINGLEUSE (obvously wrong) REGCLS_MULTIUSE (I ghought this one would work for me) REGCLS_MULTI_SEPARATE (Its THIS ONE!!) This is the one to use if you want multiple clients to share the same instance of the server. The use of the word SEPARATE fooled me into not realizing that if I wanted them to use the same server, I should use the SEPARATE option. :-D lol. Thanks for the help, Bill

Hmmm. Are you using Oracle? From MSDN: ... applies to Microsoft OLE DB Provider for Oracle, version 2.1, 2.5... The following error message may appear when 5000 records or more are retrieved, and when each record contains 4 bytes of data: 8007000e Not enough storage is available to complete this operation... Note that the computer is not really out of memory... To work around this problem, return recordsets larger than 4 bytes... This problem was corrected in MDAC 2.6 Even if it isn't Oracle, my guess is that it's the DB provider setting that error. Let me try to understand. Application A supports a COM dispatch interface, and contains the worker threads. Application B calls into application A through the dispatch interface using Invoke(), but that call returns the 8007000e error code. Is this right? If so, is the call actually getting into Application A? I have a feeling it is, and that the error is being propagated all the way back from your DB layer. I could just be making this shit up though... :confused: J

Go to Debug->Threads, You can also list modules.

Thanks for the suggestion. I agree that this is the "best" solution. I was hoping to avoid replacing about 1300 throw's in the existing code base. Thanks for the help, Bill

OOPS, thought that fixed it, instead I also eliminated the error condition, causing it to not use the global. Now when I force a file error, I get the same condition. Here's the code I used: STDMETHODIMP CFunction::Execute(BSTR bstrRequest, long lRowID, long *lRetVal) { ASSERT(afxCurrentResourceHandle != NULL); AFX_MANAGE_STATE(AfxGetStaticModuleState( )); ASSERT(afxCurrentResourceHandle != NULL); Both asserts fire! I think there must something wrong with the initialization. I also placed an assert in _twinmain before any of MY code is encountered (up 'til now its all wizardry!) if (bRun) { ASSERT(afxCurrentResourceHandle != NULL); This one fires also. What is wrong? Every thing else is standard ATL .exe project. Thanks for the help, Bill

Seems like the evil comma operator strikes back :) Well I guess all the problem reduces to having your first quotation mark displaced to the right of the second parenthesis, instead than to the left. As it stands, your expression evaluates as follows: strDiag.Format( ( "iTotalUnused * 100) / g_ThreadsArray.GetSize() = %d", iTotalUnused * 100 ) / g_ThreadsArray.GetSize()); ==> (operator , evaluates to its second argument) strDiag.Format( ( iTotalUnused * 100 ) / g_ThreadsArray.GetSize()); ==> strDiag.Format(iTotalUnused * 100 / g_ThreadsArray.GetSize()); and this of course selects the Format(UINT,...) overload. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

Got it. :-O Thanks. You are right, I was thinking that the object held the lock, not the name. I really appreciate your time on this. You have likely saved me many hours of frustration. Thanks for the help, Bill

Try searching http://discuss.microsoft.com/archives/atl.html for singleton Todd Smith

The server .exe will exit when all instances of all objects are released. Thanks for the help, Bill

Thanks, John CString str = "Some Code"; <\pre> :-O Thanks for the help, Bill