Windows loader status says notification
Privacy policy. The notification area is a portion of the taskbar that provides a temporary source for notifications and status. It can also be used to display icons for system and program features that have no presence on the desktop, such as battery level, volume control, and network status. The notification area has been known historically as the system tray or status area. See the Notifications and Notification Area sections of the Windows User Experience Interaction Guidelines for best practices in the use of notifications and the notification area.
The goal is to provide user benefit through appropriate use of notifications, without being annoying or distracting. The notification area is not for critical information that must be acted on immediately. It is also not intended for quick program or command access. As of Windows 7, much of that functionality is best accomplished through an application's taskbar button. Windows 7 allows a user to suppress all notifications from an application if they choose, so thoughtful notification design and use will incline the user to allow your application to continue to display them.
Notifications are an interruption; ensure that they are worth it. Windows 7 introduces the concept of "quiet time". Quiet time is defined as the first hour after a new user logs into his or her account either for the first time or for the first time after an operating system upgrade or clean installation.
This time is set aside to allow the user to explore and familiarize themselves with the new environment without the distraction of notifications.
During this time, most notifications should not be sent or shown. Exceptions include feedback that the user would expect to see in response to a user action, such as when he or she plugs in a USB device or prints a document. API specifics of regarding quiet time are discussed later in this topic. The remaining sections in this topic outline the basic procedure to follow to display a notification from your application to the user.
To display a notification, you must have an icon in the notification area. In certain cases, such as Microsoft Communicator or battery level, that icon will already be present. In many other cases, however, you will add an icon to the notification area only as long as is needed to show the notification. When an icon is added to the notification area on Windows 7, it is added to the overflow section of the notification area by default.
I tried the above ways and finally fixed it. The major reason causing Windows 7 not genuine is that you are not using the genuine Windows version that Microsoft provides. Another reason is that you may be using an outdated version of Windows that needs to be upgraded. If you have enabled the setting of automatic update, the system will come in contact with internet access and realizes that it is outdated. We hope the above methods solved your issue.
On the other hand, remember to tell us if you have any suggestions of making Windows 7 genuine or questions during using MiniTool ShadowMaker to back up the computer. Just leave a comment in the following zone or send an email to [email protected]. Download Shadowmaker. Warning: Uninstalling Windows update tends to be a little risky since it may result in malfunction of some program files and unexpected data loss on your computer.
To keep data safe, it is recommended to back up your computer before uninstalling the update. Tip: If you want to create a remote backup, input an IP in the text box to go on. Tip: It is not recommended to buy Windows OS from the third-party e-commerce stores.
Always buy it from the Microsoft official website. Tip: Nowadays, the support for Windows 7 is ended and you had better upgrade to Windows 10 as soon as possible. Perhaps this post is helpful to you - Windows 7 vs. Windows It's Time to Upgrade to Windows What happens if Windows 7 is not genuine? If you change the desktop background, it will change back to black. The computer performance will be influenced. Why does my computer say this copy of Windows is not genuine? For the purposes of following the next few steps, change the sample back to use Forwarded.
If you look up Section 6. DLL, and then hunts for the export directory in the module that Forwarded is attempting to load assume it is Kernel32 for now. It then changes the memory protection on the IAT of Forwarded. Going a bit further, you'll encounter LdrpSnapThunk. LdrpSnapThunk requires an ordinal to locate an entry point and to determine whether or not the API is forwarded.
If the hint value in Forwarded. DLL's import directory is correct, you can use that generally, I have found this not to be the correct value.
Observe that LdrpNameToOrdinal uses a binary search on the export table to quickly locate the ordinal—more optimization in the loader—and note that the table must be sorted in alphabetical order for the search to work. Now that you have an ordinal, you can look up the entry point for the API in Kernel Section 6. If the address the entry-point is not within the export section as defined by the address and length indicated in the Optional Header , the field is an Export RVA: an actual address in code or data.
So now you can finally decide whether or not the API has been forwarded. In the vast majority of cases, the API is not forwarded, but let's assume you are looking at Forwarded's reference to HeapAlloc. Check the math first.
But note that the fifth parameter is passed with a value of 0. DLL extension. DLL is already loaded. But do you remember that experiment where I changed the extension for Forwarded to.
Now I have an explanation for the earlier results. The routine determines what type of API information it has been handed, either an ordinal if the API name parameter is null, or the name itself.
The test is needed in order to properly set up parameters for an upcoming call to LdrpSnapThunk. But wait a moment. Didn't LdrpSnapThunk just bring us to this point? If the flag, LdrpInLdrInit, is turned on, the process's critical section is entered. Fortunately, the functionality here is pretty simple to describe and understand.
What is going on here? Why is this call necessary? The answer, in part, is that this new API itself may be forwarded! I am not aware of such a situation in Windows , but the possibility certainly exists. LdrpGetProcedureAddress frees up any work areas it might have created, exits the critical section if it was acquired , and returns. Study Section 6. The cache refresh might be a little surprising, but in many executables the IAT can be found in the. If LdrpWalkImportDescriptor does not flush the memory block containing the updated IAT, then all of the previous work will have been for naught because the processor may continue to use the old version of the memory block.
You may recall that LdrpWalkImportDescriptor tested for the existence of two directories or descriptors, the regular Import Descriptor and something called the Bound Imports Descriptor, and tried to use the Bound Imports Descriptor first if it was available. There just may be an alternative to all of this import table munging by pre-binding your DLL. Now is the time to change my test project to load TestDll and see what happens in the Windows loader with a module that has been bound ahead of time.
If you have not created the environment variable "MSSdk" as I mentioned in the readme. Or, from a command line you can enter and run the following command:. Launching the result in the debugger, you will also observe that the tests for the Bound Imports Descriptor will succeed. DLL will succeed and that means you can avoid the nasty bumps and turns that made the code very complex earlier in the discussion of LdrpWalkImportDescriptor.
My DLL loads faster because there is no looping through the APIs I imported from Kernel32 since the fix-ups have already been done including the forwarded references.
I feel like I've found the Holy Grail. But this old cup loses some of its shine when I change the sample to call fnTestDll. Before continuing, see if you can foretell why you will be walking that twisty maze again. The reason is that Forwarded.
Run the bind utility on Forwarded. DLL and the brilliance of my newfound treasure returns. The moral of this little exercise is that in order to gain the full measure of efficiency that pre-binding a module provides, make certain that all the subordinate modules have been bound, too. There is a slight downside to pre-binding a DLL, though. What happens when the next version of the operating system appears with a new version of Kernel32 and new locations for the exported functions?
Or consider the consequences of another module loading and occupying the slot reserved in memory for that DLL you have bound your executable to. Your bindings, the hardcoded addresses in the IAT, will be incorrect and considered stale by the loader.
Under these conditions, the binding is effectively ignored, the LdrpWalkImportDescriptor processing takes place, and you are no better off than you were before. On the other hand, if you can manage to keep your DLLs in sync with the current versions of the system DLLs and any others you may use, you should see an improvement in your module loads. DLL SP1. If you take stock of what you have seen and learned so far, you will realize that the first three parts in LdrpLoadDll's processing have been completed.
The last part of LdrpLoadDll to explore involves an update to module reference counts. That is the job for LdrpUpdateLoadCount. It attempts to walk either the Bound Imports table or the Imports table, and it will recurse on itself for any subordinate modules. The result is code that will likely be difficult for you to follow, but LdrpUpdateLoadCount.
You can easily imagine a tree structure that describes the relationships between DLLs and their imports, and LdrpUpdateLoadCount must walk the tree completely to update everyone's reference count correctly. Some modules enter the process with a reference count of -1 and are skipped by this update. I leave here a question for future exploration: why do some DLLs have a reference count of -1 and the others contain an actual count? Back in the ancient days of bit Windows 3.
Using NukeDll, you could nuke these orphans out of existence and free precious resources. The need for a utility like that has been virtually eliminated with Windows NT and its successors because of the compartmentalization imposed upon processes by the operating system.
But this will only hurt your own buggy application and you will only chomp through your own resources; other processes in Windows NT and Windows will be isolated from this behavior.
Now that you have grown somewhat accustomed to wandering around DLLs, you might want to experiment on your own with this small wrinkle. Change the Test sample program to issue this version of a LoadLibraryExW call and pay particular attention to the first parameter for LdrpLoadDll and note any differences.
With a minimum amount of effort you will be able to manufacture a situation where two copies of TestDll are loaded, one from the current working directory and the second from the temp directory. That would demonstrate how the. NET CLR support for side-by-side execution of different versions of the same assembly might be implemented although this side-by-side capability has been available since at least Windows NT 4.
Next time the debugger displays a DLL load notification, you will know with some degree of confidence the state that the module is in: it has been mapped into memory, it has not been added to the PEB's housekeeping area, and, most importantly, it has not been initialized yet. You also have learned that the PEB contains not one, but three lists enumerating loaded modules in load, memory, and initialization order.
There are also many other fields in the PEB worthy of examination since they lead to other vital pieces of information on your process. As Matt Pietrek has pointed out, the order of the DLLs you see displayed inside the debugger is not the order in which DLLs are initialized, as many people mistakenly believe.
Probably the most important fact to hold onto is that a simple call to LoadLibrary results in many more things occurring under the covers than might initially be apparent. A loading DLL may bring in additional modules where the process just described will be repeated over and over again. The loader still checks the reference to each DLL contained in your program, but as long as the entries are not stale in other words, the entries are still correct , the address calculation and forwarded API processing will be safely bypassed.
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