SFPack does not come with a setup program (this is for the reason that a setup program would add about 500 KB to the package size).
SFPack runs on Win95/WinNT 4 (with at least Internet Explorer 4 installed) or Win98. A video card running either in HiColor or TrueColor mode is recommended.
To install SFPack, simply extract sfpack.zip to any folder on your system (preferable you should create a folder in your program files tree). Then just start SFPack.exe and everything is done!
To completely remove SFPack from your system, open the Add/Remove programs dialog in your Control Panel, select SFPack from the list and press the Add/Remove button. Now you can delete all the files of the SFPack package.