I am sure that at some point you have removed a part of the Cisco CAD Desktop that you should not have done during an upgrade as i have many times.
Well don’t despair there is a solution. Get down and dirty with and manual removal (Come on regedit).
Follow this extracted procedure :-
It may become necessary to manually remove Cisco Desktop applications from your PC. Some reasons for this are:
■ The Windows Add/Remove Programs utility does not completely remove a Cisco Desktop application.
■ You are unable to upgrade Cisco Desktop applications due to files and settings created in a previous version.
IMPORTANT. Do not use this procedure unless you are advised to do so by the Cisco Technical Assistance Center (TAC). Contact TAC first to see if there are other solutions to the problem you are experiencing.
This procedure does not remove all Cisco Desktop elements, only those that may interfere with subsequent installations.
NOTE: This procedure removes all Cisco Desktop applications. If you want to remove only specific Cisco Desktop applications, contact TAC.
NOTE: Depending on which Cisco Desktop applications are installed on your computer, you may find all or only some of the following registry keys and folders.
To manually remove all Cisco Desktop applications from your computer:
1. From the Start menu, choose Run.
The Run dialog box appears.
2. Type Regedit and then press OK.
The Registry Editor window appears.
3. Delete the following registry keys:
Under HKEY_LOCAL_MACHINE\SOFTWARE, delete the key:
Spanlink
Under HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBC.INI,
delete the keys:
FCRasSvrDB
FCVoIP
FCVoIP_sub_1
FCVoIP_sub_2
FCVoIP_sub_3
FCVoIP_sub_4
SYNC_SERVER_A
SYNC_SERVER_B
Under HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBC.INI\
ODBC Data Sources, delete the values:
FCRasSvrDB
FCVoIP
FCVoIP_sub_1
FCVoIP_sub_2
FCVoIP_sub_3
FCVoIP_sub_4
SYNC_SERVER_A
SYNC_SERVER_B
Under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall, delete the keys:
{1F99B160-BDCE-11D5-84FE-0001031A6A35}
{2A879B13-E744-11D4-849E-0001031A6A35}
{2DF142C0-11F6-11D4-8770-00105AA752A8}
{3AFB74C0-527B-11D4-8776-00105AA752A8}
{3E2F65E8-7773-11D4-8466-0001031C0C0B}
{3F2EEAA1-1F49-11D4-8770-00105AA752A8}
{4FE45CA0-9E24-11D5-84F4-0001031A6A35}
{536A8CD0-F07E-11D4-849F-0001031A6A35}
{671EAD40-79FA-11D5-84E8-0001031A6A35}
{7816039C-78FE-11D4-8466-0001031C0C0B}
{AEF488C0-5B62-11D5-84E0-0001031A6A35}
{B2C70A61-0941-11D4-8770-00105AA752A8}
{BF7D7545-3373-11D5-84D1-0001031A6A35}
{FD3E6760-4B71-11D4-8773-00105AA752A8}
Under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services,
delete the keys:
FastCall Chat Server
RASCALServer
Spanlink
Spanlink FastCall Enterprise Server
splkldap
splkldapmon
SyncServer
TAIServer
VoIPMonitorServer
4. Access the Windows Add/Remove Programs dialog box (Start > Control
Panel > Add/Remove Programs). If you find any Cisco Desktop application names in the list of programs installed on the computer, search for them (without the version number) under the registry location HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services and delete them.
5. In Windows Explorer, delete the following folders and their contents:
C:\Program Files\Cisco\Desktop
C:\Program Files\Cisco\IM
C:\Program Files\Spanlink
C:\Program Files\Cisco\Desktop_Cfg
(Do not delete the Desktop_Cfg folder if you wish to preserve configuration data and agent recordings from an on-board Recording & Statistics server.)
C:\Program Files\Cisco\AudioFiles
(Do not delete the AudioFiles folder if you wish to preserve agent recordings from an off-board Recording & Statistics server.)
6. Under the C:\Program Files\Installshield Installation Information folder, delete the following folders.
Note that this is a hidden folder. You may need to change your Windows Explorer Folder Options to enable viewing hidden files and folders.
{1F99B160-BDCE-11D5-84FE-0001031A6A35}
{2A879B13-E744-11D4-849E-0001031A6A35}
{2DF142C0-11F6-11D4-8770-00105AA752A8}
{3AFB74C0-527B-11D4-8776-00105AA752A8}
{3E2F65E8-7773-11D4-8466-0001031C0C0B}
{3F2EEAA1-1F49-11D4-8770-00105AA752A8}
{4FE45CA0-9E24-11D5-84F4-0001031A6A35}
{536A8CD0-F07E-11D4-849F-0001031A6A35}
{671EAD40-79FA-11D5-84E8-0001031A6A35}
{7816039C-78FE-11D4-8466-0001031C0C0B}
{AEF488C0-5B62-11D5-84E0-0001031A6A35}
{B2C70A61-0941-11D4-8770-00105AA752A8}
{BF7D7545-3373-11D5-84D1-0001031A6A35}
{FD3E6760-4B71-11D4-8773-00105AA752A8}
7. Reboot the computer before attempting to reinstall any Cisco Desktop applications.