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  • Francisco Castanedo
    replied
    Semen's solution works like a charm in XP Sp2, Vista y 7!!!

    Leave a comment:


  • Francisco Castanedo
    replied
    I'm afraid it does not work for me (Egbert's code). I'm running as administrator in Windows 7 Ultimate 32-bit.
    Even with elevation by means of a manifest, it does not work either.

    Leave a comment:


  • Michael Zimmer
    replied
    Of course i could use Jordan's Innosetup or NSIS or InstallShield, but the the point is:
    Now i have a program, round about 200 kB, which i can run from USB stick and if i like install to the PC. All with one file, no separate installer neccessary.
    => that's really simple

    Leave a comment:


  • Michael Mattias
    replied
    > use a checkbox to install the program to c:\programs\..., just a copy-installation.

    Or, you could use an installer program (eg Inno setup http://www.jrsoftware.org) .

    All the decent installer software handles all that elevation stuff, PLUS provide a clean "UN-install".

    It's a thought...

    MCM

    Leave a comment:


  • Michael Zimmer
    replied
    Neils code with Semen's addition is working properly for me (within NT-domain) even with Vista as client and more than one user logged on.
    Egberts idea plain simple, but i prefer the first solution.
    Thanks.

    Leave a comment:


  • Egbert Zijlema
    replied
    Possible code to test registry access

    Hello Michael,

    What I always do to test if a user has allround registry access, is the following. Try to open with %KEY_ALL_ACCESS an "administrator key", for instances in %HKEY_CLASSES_ROOT. Or try one from inside your own proggie if you are 100 percent sure that admin-rights are necessary. Intercept %ERROR_ACCESS_DENIED and display a messagebox.

    If the result of the function is %ERROR_SUCCES (= 0; Microsoft logic?) either close the key immediately or, if it is the "real" key, process the key according to your code. Here follows a piece of code that maybe useful (not tested under Vista!). It's granted to the public domain on February 6, 2008.
    Code:
    #COMPILE EXE
    #DIM ALL
    
    #INCLUDE "WIN32API.INC"                                        ' Last Update: 27 January 2005
    
    '********************************************************************************************
    '* FUNCTION TestRegistryAccess                                                              *
    '* ===========================                                                              *
    '* This function tests whether a user has sufficient registry access or not.                *
    '* In order to get access to %HKEY_CLASSES_ROOT, one must be logged on as an administrator. *
    '* The class ID used here is the one for the recycle bin.                                   *
    '* Alternately you may want to do this test using one of the keys your program              *
    '*                                                               really needs to open.      *
    '********************************************************************************************
    FUNCTION TestRegistryAccess() AS LONG
      LOCAL hKey AS DWORD, iRet AS LONG
      LOCAL szKey AS ASCIIZ * %MAX_PATH
    
      szKey = "CLSID\{645FF040-5081-101B-9F08-00AA002F954E}"
      iRet = RegOpenKeyEx(%HKEY_CLASSES_ROOT, szKey, %NULL, %KEY_ALL_ACCESS, hKey)
      IF ISTRUE(iRet) THEN
        FUNCTION = iRet
      ELSE
        RegCloseKey hKey
        FUNCTION = %ERROR_SUCCESS
      END IF
    END FUNCTION
    
    FUNCTION PBMAIN () AS LONG
      LOCAL iRet AS LONG, sMessage AS STRING
      iRet = TestRegistryAccess
      SELECT CASE AS LONG iRet
        CASE %ERROR_ACCESS_DENIED
          sMessage = " No registry access!" & $CRLF & _
                     " In order to proceed, reboot your system" & $CRLF & _
                     " and log on as an administrator."
          MSGBOX sMessage, %MB_OK OR %MB_ICONEXCLAMATION OR %MB_TASKMODAL, " ERROR!"
          EXIT FUNCTION
    
        CASE %ERROR_SUCCESS
          ' no error, so no exit
    
        CASE ELSE
          MSGBOX "An unknown error occurred. Try again later.", %MB_OK OR %MB_ICONEXCLAMATION OR %MB_TASKMODAL, " ERROR!"
          EXIT FUNCTION
      END SELECT
    
      ' proceed your code here
    END FUNCTION
    Last edited by Egbert Zijlema; 6 Feb 2008, 06:21 AM.

    Leave a comment:


  • Michael Zimmer
    replied
    Yes it works with XP, but only partially with VISTA. Even if a user is member of the local administrators Semens code only determines a normal user.
    I have googled this issue and found Junfeng Zhang's notes:
    In Vista, even if the user is in administrators group, the OS will create a filtered user token. The full token is linked to the filtered token, and can be retrieved with API GetTokenInformation with the new TokenLinkedToken information type.
    This is a beginning, thanks. Will try with this code and tell you results later...

    Leave a comment:


  • Hanns Ackermann
    replied
    What's about this one, posted by Semen some years ago?

    http://www.powerbasic.com/support/pb...hlight=isadmin

    Regards, Hanns.

    Leave a comment:


  • Michael Zimmer
    started a topic How to find out if user runs as administrator

    How to find out if user runs as administrator

    Wrote a liitle application which works great with XP.
    I use a checkbox to install the program to c:\programs\..., just a copy-installation.
    As a normal user with VISTA you are not allowed to write anything to c:\programs.
    Of course i can include a manifest to make sure the program runs only with administrative rights, but for normal operation a normal user has enough rights.

    Now my thought is: i would disable the installation checkbox, if the program runs with normal user rights, when started as administrator the checkbox will be enabled. But how can i determine at runtime if the current user has administrative rights?
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