- If you are using Windows Live Messenger, the most likely reason you are experiencing this error is because Messenger has not been able to download your contact list and you are unable to connect to the Contacts service to download your contact list. Try the following steps:
A. Adjust your Microsoft Internet Explorer security settings:
• Start Internet Explorer.
• On the Tools menu, click Internet Options, and then click the Advanced tab. (Internet Options can also be accessed in Control Panel without starting IE)
• In the Security section, make sure that the following check boxes are set correctly:
1 Clear the Check for server certificate revocation check box.
2 Select the Use SSL 2.0 check box.
3 Select the Use SSL 3.0 check box
4 Click OK to close the window.
B. If you are using Windows Live Messenger on Windows Vista/W7, click on Start and type in each command one at a time in the Windows Vista search box located on the Start menu. For Windows XP click on START, select RUN and type in each command below one at a time and click the OK button. After each command is executed successfully, you will receive a "DllRegisterServer succeeded" message. Wait until you receive this message before you run the next command.
• REGSVR32 softpub.dll
• REGSVR32 wintrust.dll
• REGSVR32 initpki.dll
• REGSVR32 Rsaenh.dll
• REGSVR32 Mssip32.dll
• REGSVR32 Cryptdlg.dll
• REGSVR32 Dssenh.dll
• REGSVR32 Gpkcsp.dll
• REGSVR32 Slbcsp.dll
• REGSVR32 Sccbase.dll
Source of information