Themida!

VMProtect Ultimate - All-In-One Solution For Software Licensing And Protection. VMProtect protects code by executing it on a virtual machine with non-standard architecture that makes it extremely difficult to analyze and crack the software. Besides that, VMProtect generates and verifies serial numbers, limits free upgrades and much more.

ASPack is an advanced Win32 executable file compressor, capable of reducing the file size of 32-bit Windows programs by as much as 70%.

PELock is a software security solution designed for protection of any 32 bit Windows applications against cracking, tampering and reverse engineering analysis.

kkrunchy is a small exe packer primarily meant for 64k intros. It's relatively useless for anything else actually, because the depacker was relatively slow in older releases (about 1-2MB per second on my machine) and is dog slow in the newest version (about 90-120k per second for typical data on my P4 2.4GHz). kkrunchy also doesn't try to pack DLLs and can't handle exports or TLS (thread local storage) - as said, it's meant for 64ks.

Graphical GUI incl UPX 3.07 and a scrambler. Support Drag & Drop and context-menu. With many further information. UPX. NO external program required. UPX is a very good execompressor and freeware. With this scrambler you can't unpack the exe with upx any more. With German manual. New: You can choose between external (DOS-Windows) or an internal output, Result after compression. You can choose an external UPX.EXE or the internal. Incl Reduce

Crinkler is an executable file compressor (or rather, a compressing linker) for Windows specifically targeted towards executables with a size of just a few kilobytes. As of 2011, it is the most widely used tool for compressing 4k intros.

PECompact is an advanced Windows executable compressor for use by software developers and vendors. Executable packers compress executable modules (EXE, DLL, etc..) so that their physical size is considerably smaller. At runtime, compressed modules are rapidly decompressed and reconstructed in memory.

WWPack32 - Windows executable files compressor and protector. Compressed exe and dll files run exactly as before!. This program squeezes exe files and protects Win32 applications from cracking.