Microsoft Data Access Components (MDAC) is a collection of software components (such as ADO, ODBC, OLE DB, and RDS) that allow programs (such as CTI Navigator) to access data from various storage sources. Windows XP Service Pack 2 (SP2) installs a version of MDAC (2.81) that currently cannot be downloaded by itself after SP2 has been installed. If some components in your Windows MDAC are corrupted, you may not be able to install data, login, update or send data in CTI Navigator.

1.    In Windows Explorer, open the c:\Windows\Inf folder.

Note 1. If you cannot see the c:\Windows\Inf folder, follow these steps:  

a.    Click Start, click My Computer, and then click Folder Options on the Tools menu.

b.    Click the View tab.

c.     Under Advanced settings, click Show hidden files and folders.

d.    Click to clear the Hide extensions for known file types check box.

e.    Click Apply, and then click OK. 

f.      If you still do not find the Windows folder, right-click on a gray area at the top of Windows Explorer and:

1)   check Address Bar

2)   type %systemroot%

3)   Press Enter or Go.

2.  In the c:\Windows\Inf folder, right-click the Mdac.inf file, and then click Install.  

3. When you are prompted to insert the Windows XP SP2 CD, use one of the following methods:  

1. Insert the Windows XP Service Pack 2 CD in the CD or DVD drive. If a "Welcome to Microsoft Windows XP" message appears, click Exit. 
2. Click Browse.  
3. In the File name box, type {CDletter}:\i386
   where {CDletter} designates the CD or DVD drive that contains the Windows XP Service Pack 2 CD. For example, type d:\i386 if the Windows XP Service Pack 2 CD is in D drive.
   Note: If there is no i386 folder on your XP SP2 CD, you can create an i386 folder containing the install file by running the command  XPSP2.EXE /{CDletter}:C:\XpSp2. Then browse to C:\XpSp2\i386.
4. Click Open. 

--OR--

If you do not have the Windows XP SP2 CD available: 

1. In the File name box type (or Browse to)
       %systemroot%\windows\ServicePackFiles\i386
2. Click OK or Open 
3. At the prompt for adcjavas.inc, browse to C:\Windows\ServicePackFiles\i386 [see Note 2 below if the file is not in this folder]
4. At the prompt for handler.reg, browse to C:\Program Files\Common Files\System\MSADC 
5. At the prompt for MDACRdMe.htm, browse to C:\Program Files\Common Files\System\Ado.
   If necessary, separately open C:\Program Files\Common Files\System\Ado, > rename MDACReadMe.htm to MDACRdMe.htm, > then Retry to open MDACRdMe.htm 
6. At the prompt for oledbjvs.inc, browse to C:\Program Files\Common Files\System\Ole DB
7. At the prompt for mssoap1.dll, browse to C:\Program Files\Common Files\MSSoap\Binaries
8. At the prompt for mssoapr.dll, browse to C:\Program Files\Common Files\MSSoap\Binaries\(or in a subfolder of Binaries which contains this file, such as \Resources\1033). 

4. If you are prompted for the original Windows XP CD that was used to install the operating system, either:

1. Insert the Windows XP Service Pack 2 CD in the CD or DVD drive. If a "Welcome to Microsoft Windows XP" message appears, click Exit.  

2. Click Browse.  

3. In the File name box, type {letter}:\i386 
   where {letter} designates the CD or DVD drive that contains the Windows XP Service Pack 2 CD. For example, type d:\i386 if the Windows XP Service Pack 2 CD is in drive D. 
   Note: If there is no i386 folder on your XP CD, you can create an i386 folder containing the install file by running the command  XPSP2.EXE /{CDletter}:C:\XpSp2. Then browse to C:\XpSp2\i386. 

4. Click Open.

Note 2. If any requested file is not in the designated folder, use the Windows Search function to find the location of the file on your computer. 

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Related Articles and Internet Links: 

• Microsoft's Instructions to Repair the MDAC 2.81 in Windows XP SP2 using the Windows XP SP2 CD 

• Macropool's instructions to Repair MDAC 2.81 in Windows XP SP2 with or without the Windows XP CD 

• Microsoft's instructions to install the latest MDAC (version 2.8) in versions of Windows prior to XP Service Pack 2 (e.g., Windows 98/ME/NT/2000/XP SP1) 

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