Sendkeys.exe don't work properly

From: http://orlando.mvps.org/SendKeysMore.asp

"This utility is a tiny Microsoft® Windows® application of only one file, the SendKeys.exe, that can be executed with arguments in the command line to send keystrokes to other application window running on the Windows in an independent way (simulating multithreading in the calling code) with options to control the start, the throughout and the end of the sending."

Need to install the Visual Basic 6 runtime.

Seems like the sendkeys.exe cannot send the keystrokes properly to stdin.