Thanks, Rob - that's exactly what I was after.

In all my Googling, I was looking for a way to retrieve the version number and 
then do my own comparison (with no luck). This is a slightly different way but 
acheives my exact aim.

Many thanks
- Shaun

________________________________________
From: Rob Mensching [r...@robmensching.com]
Sent: Monday, January 17, 2011 7:54 PM
To: General discussion for Windows Installer XML toolset.
Subject: Re: [WiX-users] Custom Actions - C++ vs C# vs VBScript - Emailfound in 
subject - Email found in subject - Email found in subject - Email found in 
subject

The WiX Documentation for FileSearch element has a link to this page:
http://wix.sourceforge.net/manual-wix3/check_the_version_number.htm.

On Mon, Jan 17, 2011 at 7:44 AM, Shaun Hayward <shayw...@omnivex.com> wrote:

> > WiX doesn't do it, the Windows Installer does. WiX is just the language.
>
> True :-)
>
> So let me rephrase: I didn't realize that MSI had a way to retrieve the
> DLL's version and compare against it. But since it does, the awesome WiX
> will support it. Does anyone have a WiX sample of how to accomplish this?
>
> Thanks!
> - Shaun
>
>
> Shaun Hayward | Senior Software Developer | Omnivex | 905.761.6640 ext 429
> | www.omnivex.com
>
> -----Original Message-----
> From: Rob Mensching [mailto:r...@robmensching.com]
> Sent: Friday, January 14, 2011 11:12 PM
> To: General discussion for Windows Installer XML toolset.
> Subject: Re: [WiX-users] Custom Actions - C++ vs C# vs VBScript -
> Emailfound in subject - Email found in subject - Email found in subject
>
> WiX doesn't do it, the Windows Installer does. WiX is just the language.
> <smile/>
>
> Check out the FileSearch element.
>
> On Fri, Jan 14, 2011 at 6:17 PM, Shaun Hayward <shayw...@omnivex.com>
> wrote:
>
> > I didn't realize WiX had a way to actually retrieve a DLL's version and
> > compare against it. I was looking all over for that.
> >
> > Any chance you have a code sample up on your blog?
> >
> > And I'll be sure to check out the DTF articles on your blog.
> >
> > Thanks
> > - Shaun
> >
> > ________________________________________
> > From: Christopher Painter [chr...@deploymentengineering.com]
> > Sent: Friday, January 14, 2011 7:16 PM
> > To: General discussion for Windows Installer XML toolset.
> > Subject: Re: [WiX-users] Custom Actions - C++ vs C# vs VBScript -
> > Emailfound in subject - Email found in subject
> >
> > Funny you say that,  I was doing some work with KB976477 just today.
> Some
> > much
> > that I have that KB memorized.
> >
> > I don't use a CA to detect this hotfix.  I just  use the
> > AppSearch/DrLocator/Signature tables to search
> > [CommonFilesFolder]\Microsoft
> > Shared\Office12 for MSO.DLL version 12.0.6520.5000 or greater.
> >
> > Rob has made some comments lately about targetting CLR runtime
> > versions. Generally I write my custom actions to target .NET 2.0 and set
> up
> > the
> > DTF CA's to run against CLR 2.0 or 4.0.
> >
> > Either way I still find myself having to make sure .NET 3.5SP1 and .NET
> 4.0
> > are
> > on my target machines.  For example VSTO AddIns using .NET 4.0 targetting
> > Office
> > 2007 have to have both the 2.0 and 4.0 CLR loaded.  Yeah, seriously.
> >
> > BTW, there are lot's of articles on DTF over at my blog.
> >
> >
> >
> > ----- Original Message ----
> > From: Shaun Hayward <shayw...@omnivex.com>
> > To: General discussion for Windows Installer XML toolset.
> > <wix-users@lists.sourceforge.net>
> > Sent: Fri, January 14, 2011 5:56:44 PM
> > Subject: Re: [WiX-users] Custom Actions - C++ vs C# vs VBScript - Email
> > found in
> > subject
> >
> > Thanks, Chris!
> >
> > Funny it should be you that replies. I'm looking at deploying a VSTO
> add-in
> > and
> > I've read the related articles on your blog. The custom action is to
> check
> > for
> > the presence of KB976477. I think I've FINALLY found a fool-proof (yeah,
> > right)
> > way to determine if it (or a newer patch that includes 976477) is
> present.
> > (It's
> > FOSS, so anyone who is interested can have the code)
> >
> > So it sounds like C# is just fine. YAY! The DTF classes look REALLY sweet
> > in
> > comparison to what I'm dealing with in C++ - I just didn't know if I
> should
> > feel
> > free to use them at this point.
> >
> > Should the add-in be targeting a specific version of the framework? My
> > add-in
> > requires .NET Framework 4, and .NET 4 does not necessarily seems to
> include
> > full
> > compatibility with .NET 2 (so saith the QAs where I work).
> >
> > Good-bye, C++ Custom Action - hello, C# Custom Action.
> >
> > Thanks again - you made my week.
> > - Shaun
> >
> > PS: No flack on using InstallScript. Whatever works at the end of the day
> > and
> > makes your life easy, right?
> >
> >
> >
> >
> >
> >
> > -----Original Message-----
> > From: Christopher Painter [mailto:chr...@deploymentengineering.com]
> > Sent: Friday, January 14, 2011 6:32 PM
> > To: General discussion for Windows Installer XML toolset.
> > Subject: Re: [WiX-users] Custom Actions - C++ vs C# vs VBScript - Email
> > found in
> > subject
> >
> >
> >  VB/JScript is still a no go.  The managed blog was ( thankfully ) O.B.E.
> > when
> > WiX released managed custom action via DTF.
> >
> > Personally, if I had the C++ chops, had enough reusable libraries and was
> > typically shipping unmanaged apps.... then I probably would be an
> unmanaged
> > purist for CA's.   WiX uses C++ in it's custom actions because customers
> > might
> > not need/want .NET and since the CA's are being used by a very wide
> > audience
> > it's good to spend the time and make them perfect.
> >
> > But alas, I've got C# chops, the base class libraries are very powerful
> and
> > I
> > ship nearly all managed apps.
> >
> >
> > For me, the choice is easy.  For the rare occasion that I don't want a
> > dependency on .NET I either  a) role an InstallScript custom action or b)
> >  write
> >
> > it in DTF first and then borrow a resource from development to port it
> over
> > to
> > C++.
> >
> > PS-  Don't anyone jump on my InstallScript comment unless you know what
> you
> > are
> > talking about. :-)   Prior is IS 12 I'd agree with you 100%.
> >
> > Christopher Painter, Author of Deployment Engineering Blog
> > Have a hot tip, know a secret or read a really good thread that deserves
> > attention? E-Mail Me
> >
> >
> >
> > ----- Original Message ----
> > From: Shaun Hayward <shayw...@omnivex.com>
> > To: "WiX-users@lists.sourceforge.net" <WiX-users@lists.sourceforge.net>
> > Sent: Fri, January 14, 2011 12:39:11 PM
> > Subject: [WiX-users] Custom Actions - C++ vs C# vs VBScript
> >
> > Hello, WiX Community
> >
> > I've been playing around with WiX for about a year now and took over my
> > company's installations (WiX-based) a few months ago. I'm really enjoying
> > it.
> >
> > I'm looking for some advice on the pros/cons of various ways of writing
> > Custom
> > Actions. I understand that an issue with the Custom Action can prevent
> your
> > installer from working at all. And obviously if a piece of functionality
> > already
> >
> > exists in WiX then one should not re-write it in a custom action.
> >
> > I'm mainly a C# dev and doing some rudimentary VC++.
> >
> > I found it very easy to do Custom Actions in VBScript but Rob Mensching
> > posted
> > an article (http://wix.sourceforge.net/manual-wix2/robmen_20040520.htm)
> > that
> > outlines why VBScript "sucks" for custom actions. Lack of debugging and
> > conflict
> >
> > with Virus Scanners seem to be the biggies. I'm assuming these reasons
> > still
> > apply and VBScript (or Jscript) should be counted out.
> >
> > Most of the Custom Action examples I've found have been C# (my preferred
> > language) and even Nick Ramirez's excellent book on WiX only gives the C#
> > examples. However, I came across another Rob Mensching article
> > (
> >
> http://robmensching.com/blog/posts/2007/4/19/Managed-Code-CustomActions-no-support-on-the-way-and-heres
> > )
> >
> > from 2007 that outlines why Managed Custom Actions wouldn't work. Are
> these
> > issues still a consideration?
> >
> > Of course, VC++ has very few dependencies and probably has the most
> > compatibility. Theoretically, you should be able to static link against
> the
> > VC++
> >
> > Runtime and have no external dependencies at all. But C++ code is, for
> me,
> > a lot
> >
> > harder to write. The worst is trying to figure out which string is which.
> >
> > Does anyone have any incites or advice on the pros and cons of each? In
> > particular, what are the down-sides of writing custom actions in Managed
> > code
> > (C#/VB)?
> >
> > Thanks
> > - Shaun
> >
> >
> >
> > The information in this e-mail is intended solely for the addressee and
> > access
> > by anyone else is unauthorized.  Omnivex accepts no liability for the
> > content of
> >
> > this e-mail, or for the consequences of any actions taken on the basis of
> > the
> > information provided. Any views or opinions presented in this e-mail are
> > solely
> > those of the author and do not necessarily represent those of the
> company.
> > Omnivex makes no warranties, express or implied and is not responsible
> for
> > errors or omissions.
> >
> >
> >
> ------------------------------------------------------------------------------
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> >
> >
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> >
> >
> >
> >
> >
> >
> >
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> > Learn about various malware tactics and how to avoid them. Understand
> > malware threats, the impact they can have on your business, and how you
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> > https://lists.sourceforge.net/lists/listinfo/wix-users
> >
> >
> >
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> > Protect Your Site and Customers from Malware Attacks
> > Learn about various malware tactics and how to avoid them. Understand
> > malware threats, the impact they can have on your business, and how you
> > can protect your company and customers by using code signing.
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> > _______________________________________________
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> > https://lists.sourceforge.net/lists/listinfo/wix-users
> >
> >
>
>
> --
> virtually, Rob Mensching - 
> http://RobMensching.com<http://robmensching.com/>LLC
>
> ------------------------------------------------------------------------------
> Protect Your Site and Customers from Malware Attacks
> Learn about various malware tactics and how to avoid them. Understand
> malware threats, the impact they can have on your business, and how you
> can protect your company and customers by using code signing.
> http://p.sf.net/sfu/oracle-sfdevnl
> _______________________________________________
> WiX-users mailing list
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> https://lists.sourceforge.net/lists/listinfo/wix-users
>
>
> ------------------------------------------------------------------------------
> Protect Your Site and Customers from Malware Attacks
> Learn about various malware tactics and how to avoid them. Understand
> malware threats, the impact they can have on your business, and how you
> can protect your company and customers by using code signing.
> http://p.sf.net/sfu/oracle-sfdevnl
> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/wix-users
>
>


--
virtually, Rob Mensching - http://RobMensching.com LLC
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