Are you looking for some tool to edit sis files. So here is a freeware tool SISContents that allows you to unpack, edit and sign Symbian 9 SIS packages (Nokia S60 3rd, 5th Edition and Sony Ericsson UIQ 3.x platforms are supported). It helps you to inspect the files contained in SIS package, to see certificates against which it was signed as well as to view the PKG script that describes the on-device installation process. You can also edit the contents of packages and sign them after that.
- Read the contents and show information on SIS packages;
- Unpack files from SIS packages;
- Extract embedded components of packages as sis files (including certificates and signatures);
- view and save installation PKG script;
- sign packages, show information on certificates (validity period, issuer, subject, etc.), and delete them from package;
- edit package: modification of name, vendor, version, type of installation, supported platforms (devices), software dependencies, options is available. You can also add, replace and delete files/components containing in a package and change capabilities, UID3, SID of executables (i.e. exe, dll, ldd, etc.);
- read the contents and unpack files from N-Gage packages;
- extract and edit contents of mif files embedded in sis packages;
- view, extract images from and edit multibitmap (mbm) files embedded in sis packages;
- modify themes for S60 platform.
You can Downland SiS Contents from here.