I assume you set the default action for folders to be 'Explore' rather than 'Open'. You can override this default action for special folders by adding an 'Open' command under the CLSID key for the special folder in the registry. For Control Panel:
Copy the text found between the lines below
Paste into notepad and save as a .reg file
Merge the .reg file.
---------------------------------------------------------
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\CLSID\{21EC2020-3AEA-1069-A2DD-08002B30309D}\shell]
@="Open"
[HKEY_CLASSES_ROOT\CLSID\{21EC2020-3AEA-1069-A2DD-08002B30309D}\shell\Open]
"BrowserFlags"=dword:00000010
"ExplorerFlags"=dword:00000012
@=""
[HKEY_CLASSES_ROOT\CLSID\{21EC2020-3AEA-1069-A2DD-08002B30309D}\shell\Open\command]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\
00,5c,00,45,00,78,00,70,00,6c,00,6f,00,72,00,65,00,72,00,2e,00,65,00,78,00,\
65,00,20,00,2f,00,69,00,64,00,6c,00,69,00,73,00,74,00,2c,00,25,00,49,00,2c,\
00,25,00,4c,00,00,00
[HKEY_CLASSES_ROOT\CLSID\{21EC2020-3AEA-1069-A2DD-08002B30309D}\shell\Open\ddeexec]
@="[ViewFolder(\"%l\", %I, %S)]"
"NoActivateHandler"=""
[HKEY_CLASSES_ROOT\CLSID\{21EC2020-3AEA-1069-A2DD-08002B30309D}\shell\Open\ddeexec\application]
@="Folders"
[HKEY_CLASSES_ROOT\CLSID\{21EC2020-3AEA-1069-A2DD-08002B30309D}\shell\Open\ddeexec\ifexec]
@="[]"
[HKEY_CLASSES_ROOT\CLSID\{21EC2020-3AEA-1069-A2DD-08002B30309D}\shell\Open\ddeexec\topic]
@="AppProperties"
----------------------------------------------------------
You can change the default for other special folders by replacing the control panel CLSID ({21EC2020-3AEA-1069-A2DD-08002B30309D}) with the CLSID for the folder you want to change. Here's a list I obtained from David Candy:
Name CLSID
Control Panel {21EC2020-3AEA-1069-A2DD-08002B30309D}
Printer {2227A280-3AEA-1069-A2DE-08002B30309D}
Recycle Bin {645FF040-5081-101B-9F08-00AA002F954E}
Network Neighborhood or
My Network Places {208D2C60-3AEA-1069-A2D7-08002B30309D}
Dial-Up Networking {992CFFA0-F557-101A-88EC-00DD010CCC48}
My Computer {20D04FE0-3AEA-1069-A2D8-08002B30309D}
Desktop {00021400-0000-0000-C000-000000000046}
Shortcut {00021401-0000-0000-C000-000000000046}
Shell Favorite Folder {1A9BA3A0-143A-11CF-8350-444553540000}
The Internet {3DC7A020-0ACD-11CF-A9BB-00AA004AE837}
My Documents {450d8fba-ad25-11d0-98a8-0800361b1103}
Internet Cache Folder {7BD29E00-76C1-11CF-9DD0-00A0C9034933}
Internet Explorer {871C5380-42A0-1069-A2EA-08002B30309D}
Internet Explorer {FBF23B42-E3F0-101B-8488-00AA003E56F8}
ActiveX Cache Folder {88C6C381-2E85-11D0-94DE-444553540000}
Scheduled Tasks {D6277990-4C6A-11CF-8D87-00AA0060F5BF}
Subscription Folder {F5175861-2688-11d0-9C5E-00AA00A45957}
Url History Folder {FF393560-C2A7-11CF-BFF4-444553540000}
Briefcase {85BBD920-42A0-1069-A2E4-08002B30309D}
Inbox {00020D76-0000-0000-C000-000000000046}
IE5
Web Folders {BDEADF00-C265-11D0-BCED-00A0C90AB50F}
Visual Studio 6
Registered Active X {6B19FEC2-A45B-11CF-9045-00A0C9039735}
Developer Studio Components {D545EBD1-BD92-11CF-8772-00A0C9039735
**End of List
Good Luck,
Keith