[THIN] Re: Explorer shell folders in hkey_users\.default\ (reg_sz keys & environment variables)

  • From: Jeremy Saunders <jeremy.saunders@xxxxxxxxxxx>
  • To: thin@xxxxxxxxxxxxx
  • Date: Thu, 23 Mar 2006 22:02:14 +0800

Hi Joe,

If REG_SZ works without giving you problems, then it should be okay for
you. However, I always use REG_EXPAND_SZ simply because Microsoft say you
should. With REG_EXPAND_SZ string values, you can safely use environment
variables for paths that are stored in the registry. This ensures that the
any environment variable used is correctly expanded. Leaving it as a REG_SZ
value can provide inconsistent results depending on how well the
application accessing the keys has been written.

As a note you shouldn't be directly modifying the anything under the "Shell
Folders" key, just the "User Shell Folders" key.

And whilst you can change the REG type, you can delete the REG_SZ and
recreate it as a REG_EXPAND_SZ.

Whilst that's not a difinitive answer, it may give you a guide.
                                                                
 Kind regards,                                                  
                                                                
 Jeremy Saunders                                                
 Senior Technical Specialist                                    
                                                                
 Integrated Technology Services &                               
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 IBM Australia                                                  
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             "Joe Grainger"                                                
             <jag@xxxxxxxxxxxx                                             
             o.uk>                                                      To 
             Sent by:                  <thin@xxxxxxxxxxxxx>                
             thin-bounce@freel                                          cc 
             ists.org                                                      
                                                                   Subject 
                                       [THIN] Explorer shell folders in    
             23/03/2006 07:42          hkey_users\.default\  (reg_sz keys  
             PM                        &      environment variables)       
                                                                           
                                                                           
             Please respond to                                             
                   thin                                                    
                                                                           
                                                                           




Hi all,

I've researched this one briefly, using google, tweaking keywords, and
limiting search results by domain. (e.g. using site:microsoft.com)


Viewing the contents of the registry, the default key value is always
REG_SZ, and can't be changed.


On Windows 2003 Server, because the default value is REG_SZ, can you modify
a default value to include an environment variable?

   E.g Replacing âc:\documents and settings\administrator\recentâ with
â%userprofile%\recentâ



I have found Microsoft Knowledge Base articles which do state that to use
environment variables, you have to use the REG_EXPAND_SZ value type.
However I can't find a definitive answer to my question before I run any
tests.

Thanks!
Joe

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