keep trying to install but i get this
Extract: C:\Users\Robbie\AppData\Local\Temp\nshB6B2.tmp\7z.dll… 100%
Extract: C:\Users\Robbie\AppData\Local\Temp\nshB6B2.tmp\7z.exe… 100%
7-Zip 9.20 Copyright © 1999-2010 Igor Pavlov 2010-11-18
Processing archive: blackmesa.7z
Error: Can not open file as archive
Failed to extract files. 7-Zip returned error code: 2
If you are running Windows 7/Vista, try running the setup as Administrator.
Do you even have the .zip file?
Try running as administrator or just redownload the package.
Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.