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Posted 6 Jul 2006

Use CLSID to secure folders in WinXP

, 6 Jul 2006
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Using CLSID to secure folders in WinXP.

Sample Image - folderhide.jpg


In Win98, people use the "¦" character to rename folders and lock them or hide them.


The trouble began with WinXP when WinXP supported all such characters for folder names thus making life hell for hiding-freaks. Well, many folder lock software are available but whatever I found out on the net are different.


You must have noticed that the MyComputer and Recycle Bin folders behave very similar to a normal folder but still they are different. Just check out your registry:


Click the default property..... surprised? Yes, that's "My Computer". What this number "20D04FE0-3AEA-1069-A2D8-08002B30309D" represents is a CLSID.

CLSID is short for Class ID. CLSID is the identification of a COM object. Applications that support Microsoft's COM architecture register their objects as class IDs.


.{20D04FE0-3AEA-1069-A2D8-08002B30309D} (= My Computer) 
.{450D8FBA-AD25-11D0-98A8-0800361B1103} (= My Documents) 
.{208D2C60-3AEA-1069-A2D7-08002B30309D} (= My Network Places) 
.{645FF040-5081-101B-9F08-00AA002F954E} (= Recycle Bin) 
.{871C5380-42A0-1069-A2EA-08002B30309D} (= Internet Explorer) 
.{21EC2020-3AEA-1069-A2DD-08002B30309D} (= Control Panel) 
.{D20EA4E1-3957-11D2-A40B-0C5020524153} (= Administrative Tools) 
.{00020D75-0000-0000-C000-000000000046} (= Inbox) 
.{D20EA4E1-3957-11D2-A40B-0C5020524152} (= Fonts) 
.{7007ACC7-3202-11D1-AAD2-00805FC1270E} (= Network Connections) 
.{2227A280-3AEA-1069-A2DE-08002B30309D} (= Printers and Faxes) 
.{7BE9D83C-A729-4D97-b5A7-1B7313C39E0A} (= Programs Folder) 
.{E211B736-43FD-11D1-9EFB-0000F8757FCD} (= Scanners and Cameras) 
.{D6277990-4C6A-11CF-8D87-00AA0060F5BF} (= Scheduled Tasks) 
.{48E7CAAB-B918-4E58-A94D-505519C795DC} (= Start Menu Folder) 
.{7BD29E00-76C1-11CF-9DD0-00A0C9034933} (= Temporary Internet Files) 
.{BDEADF00-C265-11d0-BCED-00A0C90AB50F} (= Web Folders) 
.{6DFD7C5C-2451-11D3-A299-00C04F8EF6AF} (= Folder Options) 
.{00020801-0000-0000-C000-000000000046} (= Folder) 
.{00021400-0000-0000-C000-000000000046} (= Another Folder)


Now, in my program, what have I done? That's so simple...

  • select a folder
  • rename it with this class ID

Voila...check the folder location... it's not there. Instead there is MyComputer.


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About the Author

K edar V
India India
Kedar Vaijanapurkar

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Comments and Discussions

GeneralMy vote of 2 Pin
hadree18-Jan-12 3:25
memberhadree18-Jan-12 3:25 
GeneralCLSID for invisible Pin
sarfaraznawaz24-Mar-11 21:25
membersarfaraznawaz24-Mar-11 21:25 
GeneralEasy Going Pin
Pushkar IT5-Feb-07 3:01
memberPushkar IT5-Feb-07 3:01 
GeneralRe: Easy Going Pin
Kedar V5-Feb-07 22:36
memberKedar V5-Feb-07 22:36 
GeneralGood Idea, But..... Pin
merlin98114-Jul-06 6:22
membermerlin98114-Jul-06 6:22 
GeneralRe: Good Idea, But..... Pin
Kedar V16-Jul-06 19:47
memberKedar V16-Jul-06 19:47 
QuestionHow do you intend this to be used? Pin
arhoads7611-Jul-06 11:39
memberarhoads7611-Jul-06 11:39 
AnswerRe: How do you intend this to be used? Pin
Kedar V11-Jul-06 18:36
memberKedar V11-Jul-06 18:36 
GeneralRepost Pin
Darka6-Jul-06 9:52
memberDarka6-Jul-06 9:52 
GeneralRe: Repost Pin
Kedar V6-Jul-06 18:29
memberKedar V6-Jul-06 18:29 
GeneralRe: Repost Pin
Kedar V31-Jul-06 21:37
memberKedar V31-Jul-06 21:37 

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