Difference between VSE/VCE

[Vikas Gandhi]

Hi All
  I have developed a project using standard C++(Dot Net 2003) and also using
pthread implementation. I want to know which of the following is best
suitable as the code is  a cross platform code  (running on
Solaris/Linux/Mac osX/ Windows 2003).
Among the following options which one is more suitable and why ????

VCE: builds the VC++ C++ EH version pthreadVCE.dll
VSE: builds the VC++ structured EH version pthreadVSE.dll

Thanks
Vikas