32-bit Portable Executable: Introduced with Windows NT, these are the most complex[citation needed] and can be identified by the "PE" in ASCII. These can be run by all versions of Windows NT, and also Windows 95 and higher, partially also in DOS using HX DOS Extender. They are also used in BeOS R3, however the format used by BeOS somewhat violates the PE specification as it doesn't specify a correct subsystem[citation needed].
although without looking at the ascii chart i doubt PE match those numbers (edit: its MZ which is for DOS apparantly)
other versions of windows/dos prefixed exes with
MZ, NE, LX or LE