Vuser failed to initialize extension CitrixClientImpl.dll

Getting errors as below when try to reply the CitrixCA+Web (http/html) multiple protocol in Vugen.

Error: Exception was raised when calling per-thread-init function in extension CitrixClientImpl.dll: System Exceptions: EXCEPTION_ACCESS_VIOLATION
Error: Vuser failed to initialize extension CitrixClientImpl.dll.
Error: Exception was raised when calling event-notify Vuser function in extension CitrixClientImpl.dll: System Exceptions: EXCEPTION_ACCESS_VIOLATION
Error: Exception was raised when calling per-thread-init function in extension CitrixClientImpl.dll: System Exceptions: EXCEPTION_ACCESS_VIOLATION
Error: Vuser failed to initialize extension CitrixClientImpl.dll.
Error: Exception was raised when calling event-notify Vuser function in extension CitrixClientImpl.dll: System Exceptions: EXCEPTION_ACCESS_VIOLATION

I am using LR 12.02 and installed full LR setup in the machine including controller and LG.  Win 7, 32bit OS.