http://blog.nirsoft.net/2009/05/17/antivirus-companies-cause-a-big-headache-to-small-developers/

I’d say it is true.

Test:

Go to http://www.cygwin.com and install it using the default settings (click Next or OK all through the installer).

Run the installer once more, this time make sure you get the “upx” package.
This utility has the sole intent to make exe-files take up less disk space – and it is doing it well.

Learn how to use upx from the command line (start bash, type “upx –help”, read)

MAKE ***COPIES**** OF KNOWN *.EXE FILES and then run upx on each of them.

Try to run the copies…

Depending on which antivirus you’re using, you WILL get false alerts on the copies.

More info on UPX http://upx.sourceforge.net/ 
Ahh, there is a pure win32 executable _:-) you might even wish to try with that one.

“Decompressing kernel…”   <- familiar?

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