Yes, its in the same drive where the TEMP folder is located, and yes it is the same installation file I used with Windows XP. This very same problem happened with version 4.1.

My drive is partitioned into 2 (C and D). I’ve tried moving the installation program into drive D (which has 102MB free) and installing from there. I made sure I deleted whatever files were placed by the faulty installation before I installed again. The same error happened.

This is the size of the file as reported by Windows 98

setupeng.exe

8.27 MB (8,680,872 bytes) 8,683,520 bytes used