EncFS can be compiled and used on Cygwin.

Here are the required steps.

1. Install Cygwin with the following packages :

• cmake
• make
• gcc-g++
• gettext-devel
• openssl-devel
• procps-ng
• perl-test-harness

2. Install WinFsp, latest stable is preferred.

3. Using Cygwin terminal, install WinFsp FUSE into Cygwin :

cd /cygdrive/c/Program*/WinFsp/opt/cygfuse

sh install.sh

4. In /usr/include/fuse/winfsp_fuse.h :

Modify : return cygwin_create_path(

To : return (char *)cygwin_create_path(

(see https://github.com/billziss-gh/winfsp/pull/154)

5. Get last EncFS version (at least 1.9.5).

6. Using Cygwin terminal, build as usual.

Use as usual.

If you care about symlinks, you may consider :

• value of winsymlinks in CYGWIN environment variable ;
• usage (or not) of the limited -o rellinks option (see more in billziss-gh/winfsp#153).

For performance matters, you may consider :

• the exec / notexec Cygwin mount option.

For performance and ACLs matters, you may also consider :

• the noacl Cygwin mount option.

Regarding IVs, which are based on inode numbers : depending on configuration, they may lead to some problems, as file IDs (used to compute inode numbers) may not be consistent on Windows (see 1 and 2). If not sure, they can be disabled during EncFS configuration.