Virtualenv installation crashes on Vista

******* This bug was orginally reported to TurboGears (as installing virtualenv is a part of TG installation) and is discussed in a bigger details at http://trac.turbogears.org/ticket/2233 *******

*Reproduction steps*
From http://www.turbogears.org/2.0/docs/main/DownloadInstall.html

1. Install fresh Python 2.6.1 (though crash happens with 2.5.4 as well)
2. Add Pythons's "scripts" folder to path
3. Download and run http://peak.telecommunity.com/dist/ez_setup.py
4. Run easy_install virtualenv
5. Run virtualenv --no-site-packages tg2env

*What is shown in the command line*

C:\>virtualenv --no-site-packages tg2env New python executable in tg2env\Scripts\python.exe Installing setuptools..............

*What is shown in the Windows crash prompt (copy pasted by Ctrl-C/Ctrl-V)*

[Window Title] Microsoft Windows

[Main Instruction] python.exe has stopped working

[Content] Windows can check online for a solution to the problem.

[] Hide problem details [Check online for a solution and close the program] [Close the program]

Problem signature:

Problem Event Name: APPCRASH Application Name: python.exe Application Version: 0.0.0.0 Application Timestamp: 4937fccd Fault Module Name: _hashlib.pyd Fault Module Version: 0.0.0.0 Fault Module Timestamp: 4937fd40 Exception Code: c0000005 Exception Offset: 00005d16 OS Version: 6.0.6001.2.1.0.256.4 Locale ID: 1033 Additional Information 1: fd00 Additional Information 2: ea6f5fe8924aaa756324d57f87834160 Additional Information 3: fd00 Additional Information 4: ea6f5fe8924aaa756324d57f87834160

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*More details about my environment*
1. Vista Enterprise (close to Vista Ultimate)
2. Account of a local administrator (not a built-in admin)
3. User Access Control disabled
4. I am not specifying the virtualenv version (use whatever is fetched), but looks like I am using virtualenv 1.3.2

More detailed log can be found at http://paste.turbogears.org/paste/36560 (Linked from the TG ticket http://trac.turbogears.org/ticket/2233 )