I am trying to create a client side digital signature in IE using JScript. 
My current JScript code works quite well when run from cscript, wscript, the 
Eclipse IDE browser, and Netscape 8.04 using the IE engine.  Using the code 
from 
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/xmlsdk/html/19465f9b-b181-406c-bbae-111d0733356d.asp 
as a basis for my code.

The sign() method states:

You cannot sign any data in a non-trusted context, such as a script embedded 
in an HTML page. Doing so will result in an error. 
(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/xmlsdk/html/309123e5-c5be-4435-8ef3-19802462bf7e.asp)

The error is simply "Access is denied", very helpful.

Essentially, what is happenning is the code fails when the private key 
access is attempted in IE to actually perform the signing, but it works in 
every other context.  I have tried placing the web site in the trusted sites 
zone so that the code supposedly runs in a "trusted context", I have tried 
with http and https, I have tried using a '.hta' extension, I even set the 
GUIDs for MSXML5 and MSXML6 in the registry under 
HKLM/Software/Microsoft/Ole/AppCompat/ActivationSecurityCheckExemptionList 
(the GUIDs for CLSID_MXDigitalSignature50/CLSID_MXDigitalSignature60). 
Nothing seems to fix the key access problem.  I suspect the sign() method 
itself is checking to see if the application context includes iexplorer.exe 
and simply fails if it finds that particular string in the context prior to 
attempting to access the private key.  Is there some way to work around 
this?  I am a little concerned that something this simple works in Netscape 
8 and does not work in MS IE, especially when all of this is happenning 
using ActiveX objects.  I would also like to know if there is some tentative 
date set for A redistributable that will include MXDigitalSignature.  I know 
that 5.0 is NOT redistributable but I really need a redistributable that has 
the XMLDSig functionality.  Any guidance is VERY MUCH appreciated.

V/R,
gjb