Windows 2000 doesn't include Compression Agent. You can compress NTFS drives using the following steps:
To compress a single file or folder, follow these steps:
The compression option is available only on disks formatted with NTFS. When you add or copy a file into a compressed folder, it is compressed automatically. If you move a file from a different NTFS drive into a compressed folder, it is also compressed. However, if you move a file from the same NTFS drive into a compressed folder, the file retains its original state, either compressed or uncompressed. Compressed files can't be encrypted.