install filezilla on XAMPP Win7 as service
Yes, it is relatively easy to add manually since it is not tied to the other modules but not via the XAMPP installer or XAMPP method.
1. Download the server: https://filezilla-project.org/download.php?type=server
2. Create a folder in the XAMPP root ("\xampp\FileZillaFTP")
3. Start installer, after the 'I Agree' > check only "FileZilla Server" and "Administration Interface" > next
4. Set the destination folder to the folder you created in step 2 (if you installed to C:\xampp, it would be C:\xampp\FileZillaFTP) > next
5. Select the "Do not install as a service" option and uncheck "start after setup completes" > next
6. Select "Start Manually" and uncheck "Start interface after setup completes" > install
7. Open the Control Panel config (\xampp\xampp_control3.ini)
8. Under [EnableModules] set FileZilla=1
9. Under [BinaryNames] change "FileZilla=filezillaserver.exe" to "FileZilla=filezilla server.exe"
If the filezilla installer added any startup entries, you can remove those as well.