Probably some Internet Application on your computer tries to download these files, and IDM catches these downloads. IDM does not know where to put these downloads, or how to install them. The Internet Application may notice that these files are not there where they should be, and tries to download them again. To solve this problem, please look what server IDM tries to download from, and add this server to the list of exceptions in "Options->General" dialog.

QUESTIONS ABOUT DOWNLOADING WITH IDM

If you want to disable IDM temporarily for a single download, you may hold down the Alt key while clicking on a download link to prevent IDM from taking over the download. Note that holding the Alt key allows your browser download the file. You can customize this key by using Keys button in IDM Options->General. You may also delete this file type from 鈥渁utomatically start鈥?list in "Options->General" dialog. Or you may add this site to the list of exceptions in the same dialog.

If you don't want IDM to take over any downloads from a browser, turn off the browser integration in IDM options. After turning off/on the browser integration in "IDM Options->General", don't forget to restart the browser.

Make sure that "Integrate into Microsoft Internet Explorer" box is checked in IDM Options->General. Also IDM icon should remain in the system tray if you want it to take over downloads from MSN Explorer or Internet Explorer based browsers.

IDM takes over a download if its type matches the list of types or extensions. You may edit the list of extensions in "IDM Options->General". If it doesn't help, try to hold down the CTRL key while clicking the download link.

Please try to select a high bandwidth connection type in "Options->Connection" dialog. You may also try to play with "Default max conn. number parameter" in the same dialog. It should raise your speed. Please also note that the download speed strongly depends on the server you are downloading from and on your current network conditions.

Please check that you selected an appropriate protocol for your URL in "Options->Sites Logins" dialog. Please note that a download may have a different URL than the basic server. For example, you browse the site "http://www.mysite.com" but all its downloads come from "http://members.mysite.com". Please add the correct server name to site logins list. If it doesn鈥檛 solve your problem, try to use wildcards in URL like "*mystie.com"..

Please try to set/add the following value for the exclude list in "Options->General" dialog: *.update.microsoft.com *download.windowsupdate.com

Usually this error occurs when a temporary file is being used by some other application. It may be some antiviral software or a file viewer. Please try to restart your computer, and then resume the download. In most cases, IDM will rebuild the temporary files. If it doesn鈥檛 help, please look for the download log file, and send it to us for analysis.

Please update to the latest version. Please try to restart your computer, and resume the download. After that in most cases, IDM will rebuild all temporary files.

CONFIGURATION QUESTIONS

Please note that IDM has download categories to organize your downloads. Each category has its own download path. You should set the path for each category. Use "Options->Downloads" dialog and select a category in the drop down list. If you do not want to use categories, just delete them - right click on the category name in the main dialog and select "Delete" from the popup menu.

Usually you should use the same executable file that you are using when you launch your virus scanner from your "Windows Start->Programs" menu. Right click on its shortcut icon in the menu and select "Properties" from the popup menu. Then notice what executable file was set in "Target" field. Open 鈥淚DM Options->Downloads鈥?dialog. You need to provide the full path to your virus scanner executable file in "Virus scanner program" field in "Options->Downloads" dialog. Then type command line options in the field below. Replace file name in the command line with "[File]" parameter. For example, for Norton Antivirus you should type 鈥淐:\Program Files\Norton AntiVirus\NAVW32.EXE鈥?in "Virus scanner program" field and 鈥淸File] /s鈥?in 鈥渃ommand line parameter鈥?

GENERAL QUESTIONS

More than 100,000 registered users enjoy using IDM! Please take a look at user opinions. If you still want to uninstall IDM, refer to Windows documentation to see how to uninstall programs. Usually you should go to Control Panel, Add/Remove programs. Uninstall is 100% working. If you have problems with removing an older version of IDM, downloads and run this program to remove the integration into browsers. Then just delete IDM folder.

Please check that your Internet connection is active. Such problem also occurs when you use a firewall on your computer. After update or installation of a new version, the size of IDM executable file changes. Most firewalls check file sizes of Internet applications, because a trojan program can replace the application, and get Internet access. Probably when you were updating IDM, its executable file size changed, and your Firewall blocked Internet Download Manager.
If you have a firewall installed, please ensure that IDM has appropriate Internet access rights.
If you have Norton Internet Security installed, please try to remove IDM rule in NIS (Norton Internet Security) completely. Many users had problems with existing rules. You should select Personal Firewall tab, then go to Internet Access Control, find Internet Download Manager, and remove this rule. When IDM will try to download a file, NIS ask a question again and you should click on Yes/Permit.

Thank you for reporting the problem. We have already investigated this problem and found out that this was the fault of Google software. For some reason it declares all other application that use Service Provide Interface technology as conflicting applications, and refuses to install itself. In fact IDM does not really have any conflicts with Google Search Desktop. And you may easily verify it.
In order to install Google Search Desktop, please disable advanced browser integration in IDM "Options->General" dialog, then install Google Search Desktop and enable advanced integration back. On each run Google Search Desktop shows a message about a conflict with IDM, but nevertheless it works without any problems. Note that the current version of Google Search Desktop is a beta version, and many bugs are yet to be fixed. Google team promised us to fix this conflict in one of its future releases of Google Search Desktop. We have already contacted Google about this problem, and received a reply that the fix for Internet Download Manager should be available as soon as possible. You may also try to contact Google yourself in order to resolve this problem.

The advanced browser integration of IDM may have a conflict with another Internet application on your computer. You should try to turn off "Use advanced browser integration" option in "Options->General" dialog. This will return the basic browser integration from 3.xx versions which should not cause any conflicts. Please use "Help->Quick Update" menu item in order to get the latest version.

The purpose of this file is to check the state of Alt and Ctrl key pressed/released events only. Windows OS delivers key press events to an active window process, but IDM needs to know this state independently. That is why it's necessary to hook this dll in the message chain. And that is the only purpose. If you have knowledge, you may disassemble this dll and verify for yourself that it's true.

Microsoft Antispyware is in beta testing, and it doesn't recognize bad and good LSPs yet. It says the same for every LSP that other program install, for example for Google desktop search, or ZoneAlarm suite.
idmmbc.dll is related to advanced browser integration. This is the feature of Internet Download Manage, not available in other download managers. This dll listens to download requests from any application of your choice. Once it notices the request, it takes over the download. This way IDM captures almost 100% of links from any browser or even any Internet application. You can choose from what applications IDM should capture links in IDM options -> General tab.
Idmmbc.dll is a layer service provider that catches download clicks, and feeds them to IDM for downloading. That's the usual task being performed by download managers. Idmmbc.dll doesn't have any malicious code, and doesn't execute any Trojan functions. This dll has nothing to do with Trojans, Spyware, Adware, Viruses, and such. You may check that it's true with any spyware removal tool, including Microsoft Antispyware full system scan.
This feature can be turned off in IDM Options. You will need to reboot your computer to remove the LSP from the chain. You should never delete this file manually when the feature is turned on, because the chain may become broken, and all Internet programs may stop working. To uninstall this dll always use the checkbox in IDM options -> General tab.
The only risk of using this feature is that it may cause conflicts with malware LSPs from 3rd party software vendors which cannot work in LSP chain correctly. They either don't allow layering itself in a chain, or can't layer other LSPs correctly. Note that you may turn the advanced browser integration off afterwards when you encounter a problem, or uninstall the conflicting LSP.
If you are using Internet Explorer mainly, you don't need advanced browser integration. The basic integration for Internet Explorer has all the same advanced features.

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