wdigest.dll - Necessary

%sysdir%\wdigest.dll

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Description:

%sysdir%\wdigest.dll
wdigest.dll is a part of Digest Authentication protocol.
wdigest.dll is used with Hypertext Transfer Protocol (HTTP) and Simple Authentication Security Layer (SASL) exchanges.
wdigest.dll is a part of Microsoft® Windows® XP Operating System.
Read more: http://technet2.microsoft.com/WindowsSer...