Adobe does not officially create or support portable versions

You will not receive technical support, security patches, or bug fixes from Adobe. Official Alternatives and Free Options

Because the software is highly compressed and lacks official updates, it is prone to frequent crashing and lagging. Legal Consequences:

Downloading pirated software violates copyright laws and, in many regions, can lead to criminal prosecution. No Support:

If you previously owned a legal license for CS4, note that Adobe has ceased support for this version and it can no longer be activated online. Adobe Illustrator CS4 Legacy Features (Spanish)