"Windows NT High Contrast Invocation" - what is this?

[billandopus]

I'm running XP Pro on a old k6-3 with an old Creative tnt card. Yeah, it's old but it still works fine for surfing etc.

Anyways, i'm running Tiny Personal Firewall and I just got a particular alert for the first time ever that's pretty weird.

First off, I got a real freaky old school "ziiiiiiiip!" type of sound. Like something you would get from an old Coleco or SNES game.

Then the firewall popup came up with this:

Unknown Application!

Name: Windows NT High Contrast Invocation
Path: c:\WINDOWS\System32\sethc.exe
MD5: C3B........

I've done a quick search around and Microsoft doesn't have much info about this and a google.com search comes up with little.
I did find something related:

Q. I own a HCL beanstalk computer with P 4, 1.5 GHz, 128 MB RAM, 40 GB HD and Windows XP home as OS. My problem is when I start my computer after hibernation, it gives an error " This application (some numbers) has failed to initialise properly. Click OK to terminate" the application is SETHC.EXE . Also, when I change the desktop theme, after about 8-10 hours of working, some old theme that had been applied earlier gets applied automatically. The same theme always gets applied no matter whatever new theme I apply after nearly the same interval of time. Also my computer takes quite some time (about 5 minutes) to start up and when I log on to my or any other user it takes nearly 3-4 minutes. I made some changes in msconfig.exe

Bikrambir

A The error related to file sethc.exe is related improper setting of desktop themes. Since this error reflects changes in colour and display mode, so you can well correlate your problem of desktop theme with this error. Now to solve this problem, reduce the hardware acceleration from the maximum. This will solve both your problems. Also try restoring Msconfig.exe as this could also be causing some conflicts. Since you have not mentioned the changes you have incorporated in this file, it is difficult for me to judge the implication of changes in this file. Also, there is a word of advice for all Windows XP users. Though the minimum RAM requirement under Windows XP is 128 MB yet the actual performance is revealed when you have 256 MB or higher RAM. In your case increasing the RAM would also solve many of your problems.

Anyone have a good idea on what this little program is trying to do? I have an idea but I just want to make sure.

Thanks.