Tag Archives: extension

Windows Shell integration and Windows Live Messenger: things that should have never been done

Posted by on June 24, 2009 No comments

If you drag a file over Windows Live Messenger‘s My Sharing Folders shell name space item, it would immediately interrupt dragging with an error message box, even if you never planned to drop onto this folder:

Windows Live Messenger

This should definitely be rather implemented a different way. If you ever tried to drag something using slow PC touchpad, you probably have an idea of how annoying such an interruption could be.

Windows Live Messenger was pre-installed. To disable shared folders feature, I wanted to find a proper setting in options, but it did not appear to be easy enough: Help button, Show the menu bar, Tools, Options, Sharing Folders on the left, oops! it was not helpful.

Going another way of finding DLL that hosts the shell extension revealed file named: C:\Program Files\Windows Live\Messenger\fsshext.8.5.1302.1018.dll. Once unregistered, the folder went away from the shell (process restart needed, typically logoff/logon):

C:\>regsvr32 /u "C:\Program Files\Windows Live\Messenger\fsshext.8.5.1302.1018.dll"

NTFS Links: List junction points under certain directory

Posted by on February 16, 2009 No comments

While NTFS junction points are powerful to relink files without duplicating data and/or moving between disks, they are treated as regular directories by most of software and it may unexpectedly result in conversion of a junction point into a regular directory with implied duplication of data and disk space waste.

This is a quick fix for the NTFS Links shell extension that allows to quickly list created junction points under certain directory, and delete if necessary. The update adds a property page Junction Points to NTFS non-UNC directory properties:

Directory Junction Points Property Page

This is a quick update, so be aware (also my TO DO list):

  • no Russian localization, sorry
  • context menu should also be given another item Open Containing Directory
  • does not work for root directories
  • list items should be OLE draggable
  • there should be a junction point validation feature that checks availability of substitution path and indicates result by an icon
  • I should remove the mess between “soft link” and”junction point” in favor of the latter

Release information:

Two mouse clicks 7-Zip archives for a developer

Posted by on February 10, 2009 1 comment

I have been frequently troubleshooting remote systems and otherwise provide various temporary binary files to remote production sites with fixes or beta versions of new features etc. The software  is such that that customer sites have specific combination of hardware, configuration, hardware on LAN, software conflicts and there is a number of things that are very much easier troubleshooted directly on the production server, through remote connection. Typically I am using TightVNC and Windows Remote Desktop, sometimes LogMeIn, RAdmin and more rare alternatives (among such I would like to specially note TeamViewer).

Obviously except for released versions of binaries (which also exist in several versions from different configuration builds), there appear a number of intermediate files, DLLs and EXEs which are addressed to specific problems and fixes. The problem with multitude of different versions of the same DLL is widely known as DLL hell.

It is not actually a big hell since we are trying to follow simple rules:

  • DLLs should be backward compatible, or if the compatibility is ever broken, DLL version mismatch scenario should be handled as gracefully as possible
  • DLLs and other binaries should have VERSIONINFO resource
  • version information file version’s least significant number is incremented with each and every build; in particular this allows to keep privately program databases (PDB) and immediately find the corresponding database by file version
  • newer binaries should always have greated file version than older ones

The problem however has been that the typical process of building a temporary build of a library and uploading it to remote location required too many clicks. Considering a number of times I have been through these operations, an automation and a productivity tool should have appeared long ago. Finally this is solved by a shell extension that compresses binaries into a transferrable archive in two clicks:

Context Menu Shell Extension

Compression formats of 7-Zip (.7z), 7-ZIP SFX (.exe) and ZIP (.zip) are at user’s choice.

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