How to compress a folder?

[Herzl Regev]

I have a disk on a WinXP Pro system that says that it is compressed, but in
fact not all of it is. Some folders are compressed and some aren't, even some
whose properties say that they are compressed. How do I force compression on
a folder along with all its subtree?

 

[Detlev Dreyer]

I have a disk on a WinXP Pro system that says that it is compressed, but
in fact not all of it is. Some folders are compressed and some aren't,
even some whose properties say that they are compressed. How do I force
compression on a folder along with all its subtree?

"How To Use File Compression in Windows XP"
http://support.microsoft.com/kb/307987/en-us