Problem registering file type

  • Thread starter Thread starter Mark T
  • Start date Start date
M

Mark T

I am having a problem registering a file type and getting
it to "stick" in windows XP. When I sign on as an
administrator, I can register the file type in Windows
Explorer and it works fine. If I sign off the machine and
then sign on as a user without admin rights, the file
association disappears. When I sign on as an
administrator again, I see that the file association is
still there for the administrator. Does anyone know how I
can make the file association permanent for any user on
the workstation? Thank you in advance.
..
 
You don't say how you are doing it. Windows has per user and per machine filetypes. Editing filetypes edit the per machine unless there is a per user filetype already existing in which case that is edited. Either you or the user (or both) has a per user filetype. XP as out of the factory has only a handful of per user associations (less than 10). You really should say WHAT filetype (I am amazed at the number of people who refuse to supply information) then we could look up if it's one of the standard ones or if a per user install took place or instead of just guessing.

To specifically edit one or the other
For Per Machine
HKEY_LOCAL_MACHINE\SOFTWARE\Classes
For Per User
HKEY_CURRENT_USER\Software\Classes

See Loading Hives in Regedit's help to examine other users registry. The user registry is stored in NTUSER.DAT though the classes key is in another file called usrclass.dat at
D:\Documents and Settings\<username>\Local Settings\Application Data\Microsoft\Windows

Viewing the HKEY_CLASSES_ROOT gives a composite view of these two keys with per user overriding per machine.
 
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