I've been using this little function without any issue for the past few years to validate user credentials. The createPrincipalContext method returns a PrincipalContext with ContextType.Machine and the machine name.
public static bool ValidateCredentials(string username, string password, string domain = null) {
try {
using (var principalContext = createPrincipalContext(username, domain)) {
username = GetLoginInfo(username).Username;
// validate the credentials
if (principalContext.ValidateCredentials(username, password)) {
//once valid check if account is enabled
using (UserPrincipal user = UserPrincipal.FindByIdentity(principalContext, username)) {
return user.Enabled.GetValueOrDefault(false);
}
}
}
} catch (PrincipalOperationException e) {
traceError(e);
} catch (Exception e) {
traceError(e);
}
return false;
}
My development machine automatically updated to the latest version of Windows 10 this recently, and since then, principalContext.ValidateCredentials has been throwing the following exception.
System.IO.FileNotFoundException: The system cannot find the file specified.
Other than the machine update nothing else was changed. I've spend the last few days searching the net for what may have caused the issue.
Does anyone have any experience in identifying what may have been the cause and if possible, a solution?
