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VB6 Impersonation in Windows 7

Posted on 2011-03-14
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Last Modified: 2012-05-11
Hi,

I have a legacy application that contains some VB6 impersonation code on startup.

I am trying to make the application function on Windows 7.  I've tried creating a SHIM and also used the Standard User Analyzer to 'mitigate' issues, with no success.

To be clear, I am right-clicking the application and selecting 'run as administrator'.  There is a chance the application is calling another application, but I'm sure if the first app is run as 'admin' then the rest would follow?

The error message:

ImpersonationVB6:
CreateProcessWithLogonW() failed with error 740

I don't require the application to process the impersonation seqment and simply want the error to go away!

Any ideas?
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Question by:jamie77777
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12 Comments
 
LVL 32

Expert Comment

by:_
ID: 35133531
What about Right-click, run in XP Compatibility Mode?
0
 

Author Comment

by:jamie77777
ID: 35133621
Thanks for the vey quick response, but no, unfortunately that doesn't work...
0
 
LVL 35

Expert Comment

by:torimar
ID: 35134798
Try creating a manifest file for your application.

Here's a sample that I think should work:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
    <assemblyIdentity version="1.1.0.24" processorArchitecture="X86" name="MyApplication" type="win32"/>
    <description>This is my VB6 application</description>
    <dependency>
        <dependentAssembly>
            <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" 
             version="6.0.0.0" processorArchitecture="X86" 
             publicKeyToken="6595b64144ccf1df" language="*"/>
        </dependentAssembly>
    </dependency>
    <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
        <security>
            <requestedPrivileges>
                 <requestedExecutionLevel  level="requireAdministrator" uiAccess="false" />
            </requestedPrivileges>
        </security>
    </trustInfo>
</assembly>

Open in new window


Copy the above into a text file, adjust the "name" and "description" tags to fit your application, call the file like your application and add a '.manifest', i.e. "myapp.exe.manifest". Copy that manifest file into the application's installation folder next to the executable. Then try launching the program again.
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Author Comment

by:jamie77777
ID: 35134957
That didn't work, thanks anyway :)  I'm thinking I need to 'fool' the OS into thinking the VB6 impersonation code is working... any more ideas anyone?
0
 
LVL 35

Expert Comment

by:torimar
ID: 35159075
Just came across this one application virtualizer: http://www.evalaze.de/en/Evalaze-Softwarevirtualisierung-Evalazer/

It promises to be able to run "old applications" (even 16-bit ones) under modern operating systems.
Maybe that will also apply to your problem program.
0
 

Author Comment

by:jamie77777
ID: 35159764
Hi torimar, thanks but virtualising the app isn't an option...
0
 

Author Comment

by:jamie77777
ID: 35358648
I'd still really like some help with this. It's to the point of the vendor reengineering the app, a very expensive project..
0
 
LVL 5

Accepted Solution

by:
BrianVSoft earned 2000 total points
ID: 35361707
My apologies for responding with a totally non-helpful comment..
But I think you - like us - are out of luck. Microsoft is determined to close all VB6 functionality within a few years and are refusing to "fix" any aspect of VB6 that has already ceased to work.
Our company is facing the expense of re-writing millions of lines of VB6 code (maybe $100,000?)
Every other software language on the planet has had major upgrades - but always in backwards compatible steps that involved an expense of just a few percent of project value.
The approx 30% impost of converting VB6 to DotNet is worthy of a class action by the 10s of thousands of programmers affected. I saw (and joined) a link to such a class action at www vs2020.com - see article on "Microsoft Issues"
0
 

Author Closing Comment

by:jamie77777
ID: 35362740
Yep, figured as much.  I guess the only plus side is the amount of work it'll generate in the industry (I'm clutching at straws here...).  Thanks the information, interesting site.
0

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