Hi,
My pc is acting strange sometimes.I use a-squared hijackfree. I see the startup files containing system.ini, shell, explorer.exe.

Notepad of system.ini contains this.
; for 16-bit app support
[drivers]
wave=mmdrv.dll
timer=timer.drv
[mci]
[driver32]
[386enh]
woafont=app852.FON
EGA80WOA.FON=EGA80852.FON
EGA40WOA.FON=EGA40852.FON
CGA80WOA.FON=CGA80852.FON
CGA40WOA.FON=CGA40852.FON

Something is wrong with my pc, thats for sure.
Hijackthis shows nothing critical that i should fix.

To be sure why dont you Follow These Instructions in the following link. The security team staff will let you know if your system is infected and follow up with instructions if needed

Prework