Many Citrix administrators are complaining, that it’s very hard to debug errors in Citrix products. Some times you can switch logging (for example in XenDesktop DDC or VDA). Another time you can find some information in Windows event log. But what about deep debugging. For that purpose Citrix released (in 2007) special tool – CDFControl [CTX111961]. It’s not a problem to collect logs. But how to o