Functions of ADVAPI32.DLL

I am trying to recompile a C++ program (its a very simple program with no GUI) to run in dos - which I thought would be easy but I've hit against SystemFunction027 and SystemFunction025 in ADVAPI32.DLL and I've no Idea what these functions do.  I've tried google with no success.

I have a suspicion they are something to do with encryption (which my program does use)

Does anyone out there know what they do?

Thanks in advance
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Wierdy1024Asked:
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cookreConnect With a Mentor Commented:
In my XP Pro SP1, ADVAPI32.DLL version 5.1.2600.1106:

Function 25 is AddAuditAccessAce:
(The AddAuditAccessAce function adds a system-audit access control entry (ACE) to a system access control list (ACL). The access of a specified security identifier (SID) is audited.  To control whether the new ACE can be inherited by child objects, use the AddAuditAccessAceEx function)
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/secauthz/security/addauditaccessace.asp?frame=true

Function 27 is AddAuditAccessObjectAce:
(The AddAuditAccessObjectAce function adds a system-audit access control entry (ACE) to the end of a system access control list (SACL). The new ACE can audit access to an object, or to a property set or property on an object. You can also use AddAuditAccessObjectAce to add an ACE that only a specified type of child object can inherit)
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/secauthz/security/addauditaccessobjectace.asp?frame=true

Function 0x25 is BuildExplicitAccessWithNameA:
(The BuildExplicitAccessWithName function initializes an EXPLICIT_ACCESS structure with data specified by the caller. The trustee is identified by a name string)
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/secauthz/security/buildexplicitaccesswithname.asp?frame=true

Function 0x27 is BuildImpersonateExplicitAccessWithNameA:
(Obsolete. Do not use.)
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/secauthz/security/buildimpersonateexplicitaccesswithname.asp?frame=true
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