Determines whether a Role Member is allowed to work with a given folder as an administrator or not. Administrations privileges are for the given folder only. Roles provide the ability to offload/delegate some of the administrator's tasks onto other users, without giving full administration privileges to a user. 

This method can be accessed through the User.asmx file located in:

~/Workarea/webservices/WebServiceAPI/User/User.asmx

[SoapHeader("AuthHeader")]
[SoapHeader("RequestInfoHeader")]
[WebMethod(MessageName = "IsARoleMemberForFolder", Description = "")]
public bool IsARoleMemberForFolder(long RoleId, long FolderId, long UserId, bool GroupFlag);

<SoapHeader("AuthHeader")>
<SoapHeader("RequestInfoHeader")>
<WebMethod(MessageName = "IsARoleMemberForFolder", Description = "")>
Public Function IsARoleMemberForFolder(RoleId As long, FolderId As long, UserId As long, GroupFlag As bool) As bool