There was a similar problem in Tuxedo 9.1:
When using VS2005 dot net client application with FML buffer crashes as
access violation exception with followng stack trace.
System.AccessViolationException: Attempted to read or write protected memory.
The fix for BUG 8759867 was in Tuxedo 9.1 rolling patch 018.You may download this patch yourself from the MyOracleSupport portal.
What is the Tuxedo release(e.g. 9.1), platform(e.g. , compiler(e.g. VS2005), and compiler version (e.g.v1 or v2) if any?
(Tuxedo 9.1), (VS2010), (framework 4)
The error raise when tpcall responce is application service failure .
outher responce its work fine .
VS2010 is not a supported compiler for Tuxedo 9.1.
Here is a link to the certified configuration table for the different Microsoft Windows releases: