Sp1.7z -

Archives for older systems like Windows NT 4.0 , Windows 2000 , or Windows 7 often use the .7z extension to store original Service Pack installers.

Since it is a 7-Zip archive, you will need an extractor like 7-Zip or PeaZip .

Most SP1.7z files contain a .exe or .msi installer along with support libraries. For example, a Windows 7 SP1 update is typically identified by the KB number KB976932 .

Heavyweight applications like SolidWorks 2022 or CircuitMaker 2000 distribute SP1 updates in .7z format to reduce download size.