Today I had to update some Citrix XenApp 6 servers to SP1 and like I already knew I have to install a certain patch I blogged about earlier. But when I tried to install SP1 on one particular server I got an error stating that the installation was failed and I had to follow a link to a Microsoft KB article.
This article was mentioning Update for Microsoft Forefront Client Security (KB2394433), so when I downloaded this patch from the catalog pages from Microsoft and installed it I was able to install SP1 with success.
