unable to invoke the service through URL

Hi All,

i’m unable to access the service by providing the URL like this
[SIZE=2]http://username:password@servername:port/invoke/Test_Ldap.Services/processSSOInformation_2?sso=208026678

from internet explorer.
But the service was invoking when we try in netscape navigator or mozilla firefox. Any body knows why it was happening…please help me out if any body knows the sollution…

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