Vista Levels error

[NaRcoTihX]

So.. I download PR from MOD-DB.

I installed CORE sucessfully, and now when I try installing Levels, it doesnt do any in few minutes, then it says this (The Levels.Exe application) must be opened with WinRAR.
WTF?

then I say ok to this, and it says error etcetc and it closes.

What can be wrong??!

[thepalerider]

You need a program that can read/decompress RAR files.
Might I suggest 7-zip It's free and handles more than just RAR files.

The main features of 7-Zip

* High compression ratio in new 7z format with LZMA compression
* Supported formats:
o Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
o Unpacking only: ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, NSIS, RAR, RPM, UDF, WIM, XAR and Z.
* For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
* Strong AES-256 encryption in 7z and ZIP formats
* Self-extracting capability for 7z format
* Integration with Windows Shell
* Powerful File Manager
* Powerful command line version
* Plugin for FAR Manager
* Localizations for 74 languages

Good luck