No. From Par's Faq:
On what platforms can I run PAR? On what platforms will the resulting executable run?
Win32 (with VC++ or MinGW), FreeBSD, NetBSD, Linux, MacOSX, Cygwin, AIX, Solaris, HP-UX, Tru64.
The resulting executable will run on any platforms that supports the binary format of the generating platform.
Update: You might remind them that IBM has published (I forget where) an End-Of-Support date of Dec. 31, 2006 for OS/2. So whatever solution you come up with will likely need to be changed in about a year.
"Cogito cogito ergo cogito sum - I think that I think, therefore I think that I am." Ambrose Bierce