|Go to http://www.ncbi.nlm.nih.gov/||This is the National Center for Biological Information (NCBI) site, home of Blast and much else|
|Scroll to bottom,
Click on FTP Site (left hand bar)
|Gets you to page where you can download programs NCBI makes available|
> BLAST Basic Local Alignment Search Tool
|(avoid the Blast button at the top of the page). You should get to an index.|
|Click on Executables||This opens an index of programs|
|Click on blastz.exe||Blastz.exe is a file that contains all the programs and data files necessary for Blast to run under DOS (or in Windows). (If you want Blast on something besides a PC, you're on your own.) Your browser will ask you where you want to put the file.|
|Click on Save in box. Click
Click on new directory icon (a folder with a sun peeking through).
Type Blast in the name box, press Enter key.
|You're free to download Blast anywhere you like, but be warned: LOTS of files will be created. I suggest a new directory|
|Click on the directory Blast that you just made.||Common error: Making a directory doesn't put you in the directory.|
|Click the Save button||Saves Blastz to C:\Blast directory. This should take a few seconds, or much longer, depending on your connection.|
|Get to a DOS window
(Run Command or Run Cmd)
|Blastz is a DOS-based program. You can't run it directly from Windows.|
|Type CD \Blast||Change directory to Blast, where you put Blastz|
|Type Dir||(not necessary, just to get immediate gratification).
You should see something like
BLASTZ EXE 7,808,692 09-10-02 4:14p
|Type blastz||Blastz is a self-extracting program. Running the program
decompresses all of the files within it. You should see lots of messages
|Congratulate self||You're done!|