In 1999 Koch, via the German Unix User Group which he served on the board of, received a grant of 318,000 marks (about $170,000 US) from the German Federal Ministry of Economics and Technology to make GPG compatible with Microsoft Windows.
在1999年，科赫憑著他在德國Unix用戶組（英语：German Unix User Group）的董事會職位獲得德國聯邦經濟事務和能源部318,000德國馬克（約170,000美元）的資助，以使GnuPG與Microsoft Windows兼容。