PS 4.5 and Java timezone issue

ndavison — Thu, 14 Jun 2012 03:21:27 GMT

Hi everyone, I've come across a problem in a PS 4.5 farm where a .NET application needs to leverage a Java module that involves checking time compared to a submitted record. After some investigation it seems that Java thinks the Citrix server is 15 hours behind the correct timezone (which is +10 GMT) - reporting itself as -5 GMT. I managed to prove this only happens inside a Citrix session, not a normal RDP session to the server. I also don't believe it is a general time issue - just a Java timezone issue. The server had rollup pack 6 installed. In rollup pack 7 for 4.5, it actually mentions this problem as fixed: http://support.citrix.com/article/CTX127926 "IBM Lotus Notes Calendar does not reflect the correct time when run as a published application. The issue occurs because Lotus Notes Calendar runs as a Java program on the server but does not use java.exe or javaw.exe. This fix introduces support for the following registry key that lets you add a list of programs that run as Java programs but do not use java.exe or javaw.exe. When a program loads tzhook.dll, which handles the implementation of local time and time zones, it will check against this list; if a match is found, the requisite additional APIs are hooked so that the correct time and time zone appear in the session." And says you need to add a MULTI_SZ registry key in "HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\CtxHook\AppInit_Dlls\Per Session Time Zone" called "javaexes", and list the executables which need this fix applied in real time. So I upgraded to R07 and tried this - but it didn't help. Just to be thorough I made sure to include every EXE involved with this application in the list. I did eventually "fix" the problem by downgrading to R01 (the only older pack I have on hand) - the problem simply doesn't seem to exist in R01 so it must have been added inside R06 or some other pack. I'd much prefer to get it working on R07 though. Has anyone managed to do this, or have any advice? Thanks.

Citrix XenApp / Presentation Server

PS 4.5 and Java timezone issue