Other free stuff

Executable compressor : UPX

Summary

• No abstract
• All links
• About UPX (short)
• Windows integration

All links

• UPX Homepage : home page of UPX, for more information about the program
• upx125w.zip : direct download of UPX

About UPX (short)

UPX (the Ultimate Packer for eXecutables) is a free, portable, extendable, high-performance executable packer for several different executable formats. It achieves an excellent compression ratio and offers very fast decompression. Your executables suffer no memory overhead or other drawbacks because of in-place decompression.
For more information on UPX, see their website.

Windows integration

The following code will add an option in Windows Explorer context menu that enables you to compress your exe and dll files directly from the explorer : (please see the regedit tutorial about reg files if you don't know how to use this code)

REGEDIT4

[HKEY_CLASSES_ROOT\dllfile\Shell\upxpack]
@="Pack with UPX"

[HKEY_CLASSES_ROOT\dllfile\Shell\upxpack\command]
@="C:\\UTILITIES\\UPX\\upx.exe \"%1\""

[HKEY_CLASSES_ROOT\exefile\Shell\upxpack]
@="Pack with UPX"

[HKEY_CLASSES_ROOT\exefile\Shell\upxpack\command]
@="C:\\UTILITIES\\UPX\\upx.exe \"%1\""

To use it, replace C:\\UTILITIES\\UPX\\upx.exe with the path of your UPX installation (and put two backslahes instead of one).

To remove the option, use the following code (the same way as above) :

REGEDIT4

[-HKEY_CLASSES_ROOT\dllfile\Shell\upxpack]
[-HKEY_CLASSES_ROOT\exefile\Shell\upxpack]