ruby - Can we handle OS pop-up using "gem sikuli" in selenium script -

when hit url in browser gives windows authentication pop-up , need enter proper username , password give home page of site.

• it not able handle windows pop-up using selenium-webdriver

• i trying handle pop-up using gem sikuli code inside selenium script giving error as

timeout::error: execution expired

os pop ups cannot handled using selenium web driver , there numerous other frameworks can handle it. upload window , should work scenario too.

this use in c#