Right-click is extremely slow only when Network is enabled
SYMPTOM
Right-click may be extremely slow when a system is connected to a Network. And, disabling the network interface card restores the normal right-click functionality back.
Opening files from icons, will result very slow.

MORE INFORMATION
This is usually caused by adding a context-menu option referring to an application placed in a network share.
Type netstat -a while you wait files to open and identify what connections are estabilished or are in sync.

Example - Assuming that WinZip is placed in a shared location / File Server, and when a user launches WinZip from the network share and enables WinZip Shell integration to their system, the registry entry will point to a file in the network share / file server, such as:

HKEY_CLASSES_ROOT\WinZip\shell\open\command

With the (default) value assigned the following:

\\192.168.0.3\sharedprogs\WinZip\winzip32.exe “%1″

With the above setting, if the file server or the networked computer which hosts the Program, is turned off, and when you right-click on an icon in your computer, you’ll see the huge delay.

Sometimes, you’ll experience slow right-click only for the first time after a fresh restart.
You’ll see some Packets being transferred via the Network Interface Card (Taskbar notification icon)
So, it’s not a Shell extension, but a normal verb / command ?

RESOLUTION
CAUTION: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Use Registry Editor at your own risk. It’s highly advisable to backup the registry whenever you modify an entry.

ShellExView can only enumerate items under ShellEx (not from the Shell keys). To resolve this particular problem, you have three options.

Follow any one of these methods:

Use Folder Options, File Types dialog to manage the right-click entries for that file type.
Manually inspect the Shell entries as stated in document Manage the context-menu entries
Download RegScanner and search for the values beginning with the string \\ . (Read below…)
RegScanner is a small utility that allows you to scan the Registry, find the desired Registry values that match to the specified search criteria, and display them in one list. After finding the Registry values, you can easily jump to the right value in RegEdit, simply by double-clicking the desired Registry item.

RegScanner usage (in this context)
You need to spot the registry values that begin with string \\ (referring to a network location)

Run RegScanner and configure the Search option as in the figure below:

Once configured, click the OK button. Scanning will take few seconds to complete.
In the scan results, locate the registry data which references a network share.
(See example below, WinZip executable in a Network share)

NOW, you know the entry (or entries) which are pointing to a network share. They are probably causing the right-click delay. Go to that particular location in Regedit and then backup the corresponding keys to REG file. Then modify/delete the value accordingly.

Articolo aggiunto il Thursday, July 21st, 2005 alle 6:32 pm in Cases. Puoi seguire i commenti alla notizia con questo feed RSS 2.0. Puoi aggiungere un commento, o seguirlo con un trackback dal tuo sito.