Good day / Evening to all you list legendaries! For those of you who are interested (apologies to those who are not) I traced the issue here to a DLL creating a buffer overflow during the users session creation and crashing IE (while it tries to launch) It was being called under "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\AppInit_DLLs" which i believe is a legacy setting, but one which citrix is still using... removing and re-adding each DLL individually brought us to our AV (sophos) Dll file. Removing this from the appinit_dll registry entry stopped the seamless session crashing. Score 1 for PROCMON! Cheers James From: scanjam@xxxxxxxxxxx To: thin@xxxxxxxxxxxxx Subject: App Loads Via Desktop but Not Published App Date: Fri, 15 May 2009 11:31:07 +1000 I have a JAVA enabled web site. Its available via full citrix desktop or as an individually published application (c:\program files\internet explorer\iexplore.exe http://javaapp) On some servers IE is definitely loading and the users are logging in, but as soon as JAVA is supposed to load in the IE window, IE quits. The users session stays open. The IE / Java app works on the troublesome servers if via full desktop, just not via citrix published app. 2 other machines of the same cloned image dont have this issue, but 3 do. Its not a printer issue (removed printer mappings) Its not a cilent side resolution issue (change the local resolution to 1024x768) still quits out All Clients are running client build number 52110 (10.0) Presentation Server 4.5 - R03 W2K3 SP2 Any pointers much appreciated! Cheers James Click Here View photos of singles in your area _________________________________________________________________ View photos of singles in your area Click Here http://dating.ninemsn.com.au/search/search.aspx?exec=go&tp=q&gc=2&tr=1&lage=18&uage=55&cl=14&sl=0&dist=50&po=1&do=2&trackingid=1046138&r2s=1&_t=773166090&_r=WLM_EndText