Fix Permission Denied Error 

As with many error messages, there can be several causes for and variations of this error message. The appropriate fix may depend on the version of Windows that is running on your computer and when CTI Navigator Desktop was installed. Follow the instructions below appropriate for the function you were using in CTI Navigator Desktop when the error occurred: 

Display Report

A "permission denied" error when attempting to display a report in CTI Navigator Desktop indicates that at least one listing photo probably is locked or corrupted on your computer. To fix this error, follow the instructions in the related article, "Photo Install or Update errors...".

Using Send Functions

Send functions in CTI Navigator Desktop include Login over the Internet, Retrieve or Send listing, Send photos, Open or Send CTI Matchmaker. 

Windows 7 or Vista: CTI Navigator Desktop installed prior to April 19, 2012 must be assigned administrative privileges in Windows Vista or Windows 7 to utilize Windows services (such as accessing the Internet or compacting local files). To give the program administrative privileges, right-click on the Windows Start icon > select Windows Explorer > browse to the folder that contains the "CTI Navigator.exe" program file (typically C:\Program Files\CTI Navigator; or, in a 64-bit version of Windows, C:\Program Files (x86)\CTI Navigator) > right-click on the CTI Navigator.exe file > select Properties > click the Compatibility tab > under Privilege Level, check "Run this program as an Administrator" > click OK. 

Installations of CTI Navigator Desktop on or after April 19, 2012 do not require, and should not be assigned, administrative privileges. For more Vista and Windows 7 specific information, see the related article, "Use Windows Vista and Windows 7"). 

Windows XP (or Windows Vista) if CTI Navigator was installed on this computer before June 2008: For old installations of CTI Navigator Desktop in Windows XP to be able to automatically access the Internet, either (a) the Windows DCOM function may need to be enabled and set to use its Tunneling protocol, or (b) the Windows XP code for Internet access must be upgraded to use Microsoft's more advanced ".NET Framework" technology. Otherwise, Windows will display a Permission Denied" error when CTI Navigator tries to access the Internet. The easiest fix usually is to ensure that your Windows is up-to-date, then uninstall CTI Navigator and re-install a new copy of CTI Navigator (click here to download the latest version of Navigator Desktop).

Windows 2000 (or earlier): To fix a "Permission Denied", "Remote Calls Not Allowed", or "Permission to use Object Denied" error in Windows 2000, or if the preceding does not fix the error when using CTI Navigator's Internet functions in Windows XP, 7 or Vista installed prior to April 19, 2012: 

  1. Open the Windows Control Panel  
  2. Select Administrative Tools
  3. Double-click on Services 
  4. Right-click "DCOM Server Process Launcher"  
  5. Select Properties 
  6. Under General tab, change the Startup Type to Automatic 
  7. Under Service Status, click Start
  8. Click OK.

If you are using McAfee's firewall, ensure that (1) CTI Navigator is granted "full access"; and (2) the "McAfee Redirector" proxy services (if installed) are disabled (see related articles below). 

If starting the DCOM Server Process Launcher (described above) does not fix the problem, follow the instructions in the related article "Fix Remote Server does not exist or is unavailable error (462)". 

If the error persists, ensure that you log into Windows using a Computer Administrator account, or an account that has been setup with the appropriate "permissions" by a Computer Administrator (see the appropriate article, "Set Permissions for Windows Limited Accounts" and/or "Using Windows Vista and Windows 7", below).

For older versions of Windows or if completing all of the preceding steps still does not fix the error, advanced users may open the Windows Registry editor (see warning below) by selecting Start > Run > regedit > Open. In the Registry, browse to HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > ole > beside LegacyAuthenticationLevel, if the REG_DWORD Data shows 0x00000001 (0), double-click on LegacyAuthenticationLevel and change the Value data from 0 to 1 > do not make any other changes  > verify that REG_DWORD shows 0x00000001 (1)> exit the Registry Editor  > re-start Windows. 

Warning: Making changes to the Windows Registry is risky and should be attempted only by advanced users. Before you modify the Windows Registry, it is advisable to back it up and ensure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, read the Microsoft Knowledge Base article, Description of the Microsoft Windows Registry (see the article Internet link below). 

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Program or Data Update

"Permission Denied" when updating the CTI Navigator Desktop program or data indicates that one or more update files is locked or corrupted. To fix this error, delete all the files in CTI Navigator's Update folder, and then update again. 

The location of the Update folder varies depending on when CTI Navigator Desktop was installed and into which version of Windows it was installed. 

For new installations (after April 19, 2012), the Update folder in 

For older installations (before April 19, 2012), the Update folder in all 

If CTI Navigator was installed after April 19, 2012 and one of the files in the Update folder cannot be deleted, you may need to either

  • shut-down and then re-start Windows; -- or --
  • stop the CTIUpdateService to unlock files being processed so they can be deleted and then restart the CTIUpdateService.

To stop the service:

  1. Right-click on the Windows task bar (at the bottom of the Windows screen) and select Task Manager ("Start Task Manager" in Windows 7)
  2. Select the Processes tab 
  3. Select CTIUpdateService
  4. Click the End Process button
  5. If CTIUPDManager.exe is listed as a process, also select it and "End Process"
  6. Close the Windows Task Manager.

To re-start the CTIUpdateService (after deleting files in the Update folder), re-start Windows. (See also note 1 below.)

Note 1:  To both stop and/or start the CTIUpdateService without needing to re-start Windows, you can either

  • open Windows Task Manager, select the Services tab, right-click on CTIUpdate Service, and change the Status (from "Stopped" to "Running", or vice versa) as appropriate. - or -
  • open the Windows Control Panel, select Administrative Tools (under "System and Security" in Category View),  select Services, right-click on CTIUpdate Service, and change the Status (Stopped to Running, or vice versa) as appropriate.

Installing Tax Update

"Permission Denied" when installing a tax update from CD in CTI Navigator Desktop indicates that the existing tax file is either locked or is corrupted and cannot be overwritten by Windows. Ensure that CTI Navigator Desktop is closed before running the tax update CD. Otherwise, to fix this problem:

  1. Open Windows Explorer (right-click on Start > select Explore, Explore All, or Start Windows Explorer) 
  2. Browse to  \Cti Navigator\{YourMLScode}\Data\Tax.mdb   {see note 2 below for the compete path}
  3. Right-click on tax.mdb and delete it
  4. Close Windows Explorer and insert the update CD to install the new tax file.

Note 2.  The path to the " \CTI Navigator\{YourMLScode}\Data"  folder for your MLS data depends on when you installed the CTI Navigator Desktop program, and into which version of Windows it was installed.

Note 3: Where instructions refer to {YourMLScode}, substitute CTI's 3-letter code for your local MLS (without the {} braces). This code can be determined by clicking here; or by opening the CTI Navigator login screen > click the Setup button > the MLS code is the first 3 letters in the Internet Server Address box.

Updating Photos

"Permission Denied" when updating photos in CTI Navigator Desktop typically indicates that either the MLS photos where never properly installed or they were corrupted during an update or download into your computer. To fix this problem, follow the instructions in the related article below, "Photo Install or Update errors"

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Compacting Data

If "Permission Denied" occurs when compacting MLS data in CTI Navigator Desktop installed prior to April 19, 2012 on a computer running Windows Vista or Windows 7, give "CTI Navigator.exe" administrative privileges as described in the Windows 7 or Vista section above. Installations of CTI Navigator Desktop on or after April 19, 2012 do not require administrative privileges in Windows Vista, 7, or 8. Navigator Desktop will function correctly even if the Windows compact function does not work properly.

If you are using a "Windows Limited Account" in Windows XP Professional, follow the instructions to Set Permissions for Windows Limited Accounts in the related article below. 

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Related articles and Internet links:

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rev. 10.02.2017