Non-official "portable" versions often strip out critical components like:
A "portable" version of VB6 is typically a modified, stripped-down edition of the software that can run from a USB drive or a folder without requiring a traditional installation process. visual basic 6.0 portable version free download
Microsoft still allows of VB6 to install it on modern Windows, but not as a portable app. Here is the legitimate path: visual basic 6.0 portable version free download
These files are typically: