October 6, 2006 The FASTA programs for Windows32 environments (WindowsNT, 2000, XP) has undergone a major upgrade, so that now all the programs in the Unix/MacOSX distribution are available to Windows users. Moreover, Windows users with modern (SSE2 compatible) processors can run greatly accelerated versions of the Smith-Waterman ssearch program. Moreover, these programs work both with FASTA formatted files, and NCBI BLAST formatted files. The following programs are available: fasta36.exe protein-protein or DNA-DNA database searches fastf36.exe fastm36.exe fasts36.exe fastx36.exe compare DNA query to protein library with frameshifts fasty36.exe compare DNA query to protein library with frameshifts prfx36.exe prss36.exe evaluate statistical significance using shuffles prss36sse2.exe ssearch36.exe Smith-Waterman for prot-prot or DNA-DNA searches ssearch36sse2.exe Smith-Waterman, accelerated with SSE2 extensions tfastf36.exe tfastm36.exe tfasts36.exe tfastx36.exe compare protein to DNA library with frameshifts tfasty36.exe compare protein to DNA library with frameshifts Each of these programs also has a "threaded" version, which can run on multiple processors (or dual cores) if they are available. However, they are built using the Unix pthreads API, so to use these programs, you must download the pthreadVC2.dll from: ftp://sources.redhat.com/pub/pthreads-win32/dll-latest/lib/pthreadVC2.dll see also http://sourceware.org/pthreads-win32/ fasta36_t.exe fastf36_t.exe fastm36_t.exe fasts36_t.exe fastx36_t.exe fasty36_t.exe prfx36_t.exe prss36_t.exe prss36sse2_t.exe ssearch36_t.exe ssearch36sse2_t.exe tfastf36_t.exe tfasts36_t.exe tfastx36_t.exe tfasty36_t.exe Without that DLL, the threaded programs will not run at all. The current compilation supports two threads, and speeds up searches about 2-fold on dual-core processors. The programs have been tested with protein and DNA databases in FASTA format, PIR/GCG-text format, and Genbank flatfile format. The program does not work properly with GCG binary format databases, but it seems unlikely that Windows users would need these. Be certain to use an program that can work with long file names when unpacking the program source files. Please report bugs to: wrp@virginia.edu