Hi Randall,
I am experiencing exactly the same problem on a DELL Precision M50 I am configuring, running MS Windows XP Pro SP1, Symantec Norton SystemWorks 2003 Professional and Autodesk Inventor Series 5.3. In my part of Australia the local VAR hasn't delivered IS6 yet, but I think I shall wait until SP1 to arrive before coverting..., anyway I digress...
The question that I have for you (and any other affected user of IS5.3 or IS6) is, does your product use the C-Dilla software licensing system in conjunction with this product?
I have found (as you and others have) that disabling the Norton Anti-virus Autoprotect feature will allow the products contained in the Inventor Series to operate normally. I have yet to fully test the time limits (if any) of this apparent workaround. If I fail to disable this virus protection app' by turning off Auto-protect in the Windows Taskbar, then launching ANY application that is part of the Inventor Series package (i.e. Autocad, Autocad Mechanical, Autodesk Mechanical Desktop or Inventor) will cause winlogon.exe to monopolize CPU cycles and the hard disc continually. The applications will load but they take what seems like an eternity to do this. When they finally load there is just no processing bandwidth left to effectively use the software. Shutting down whatever Autodesk app' I have started does not cause this problem to cease. The machine perpetually runs slowly because of this persistent problem, consequently affecting any other program from running normally - whether this be a Windows OS feature or Microsoft or third-party Windows-based program. I have to shut everything down and reboot to eliminate this problem.
Of particular interest to me was that I could repeat the same system failure by lauching only the C-Dilla standalone "portable licensing ultility" which is integrated into the international versions of the Autodesk Inventor Series (without using the Autodesk IS applications!). Users of 3D StudioMAX 5 have reported a similar problem and this Autodesk product is also software locked using C-Dilla. (Refer to the Discreet website for more on this matter). Their problem is apparently related to various Enterprise versions of Norton Anti-virus.
I have run all the available patches for the C-Dilla licensing program, currently at version 3.25.010 with no success in eradicating this problem. Refer to the Autodesk product Knowledge base under RTS 324010 and RTS 325010 for more information on C-Dilla patches.
On launching the C-Dilla portable licensing utility shortcut within the Inventor Series Program Group it reports the following information:-
Portable Licensing Utility Version 1.33
Language Version 9.9
The only way I can confirm that the patches offered for C-Dilla have installed was to initiate the add/remove programs applet within Windows Control Panel. This returned the following information about the C-Dilla License Manager:-
Version 1.01.00
LMS Version 3.25.010
I conclude that the license manager is sucessfully patched to the latest version available as of 5 November 02.
I have looked into the c-dilla.com and macrovision.com websites for info on this problem and a fix but there is nothing that I can find so far....
I have logged this problem with Symantec at their support website, but as of earlier today I have seen no additional feedback to this post of any benefit, though they have acknowledged the post (FYI - refer to for my post at:-
http://servicenews.symantec.com/cgi-bin/displayArticle.cgi?group=symantec.support.winxp.nortonantivirus2003pro.general&article=<1021005074225.6032102531@servicenews.symantec.com>&product=nav&mini_version=nav2003_pro&tpre=sg
I have the DELL M50 notebook loaded with all the office and engineering applications I commonly use (I suppose I'm addicted to the convenience and flexibility that portability provides) and none of these programs conflict with Nortons like the C-Dilla managed Autodesk products do!!
I had previously been running IS5.3 on a DELL Inspiron 5000e notebook with Win 2K Pro and Norton SystemWorks 2001 Pro with no such conflicts.
Love Nortons or hate it, it has saved me from infection by Email attachments more than once, so I really would like to see a fix to this problem ASAP.
Despite the results of my digging so far, I don't profess to know the specific nature of the problem or a definite repair. Just hoping that my experience may help others in better identifying the nature of their compatibility issues.
I would love to hear from anyone who knows more about this issue or any possible permanent software patches or upgrades that will allow all these applications to co-exist efficiently.