Registry errors are often the leading cause of SIS file issues. It is highly recommended that you scan your PC using the SIS File Repair Tool. This will perform a full system analysis and fix the problematic registry entries causing this issue.
SIS file error symptoms can include the inability to open SIS files, program lock-ups, crashes, slow PC performance, startup and shut down problems, and installation errors.
Fixing the Problem
To ensure SIS files can be opened and read by your computer, download and run the SIS File Repair Tool. Simply click the button below to download the software.
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