Determining if Outlook is installed?

  • Thread starter Thread starter Tony Toews [MVP]
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T

Tony Toews [MVP]

Folks

I'd like to determine if Outlook is installed. Is it sufficient to

check for the existence of the following registry key?

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\12.0\Outlook\InstallRoot

Value Path

Where the 12.0 can clearly change depending on the version of Outlook.

Now being a paranoid pessimist I'll also double check that the exe

mentioned in the path also exists.

What happens if the user has had an older version of Outlook installed

but now has a newer version? Does the older version registry key

still exist? Hmm, I'll start at 14.0 and go backwards to version

10.0 then.

Any other things to consider?

Tony

Tony Toews, Microsoft Access MVP

Tony's Main MS Access pages - http://www.granite.ab.ca/accsmstr.htm

Tony's Microsoft Access Blog - http://msmvps.com/blogs/access/

For a convenient utility to keep your users FEs and other files

updated see http://www.autofeupdater.com/

Granite Fleet Manager http://www.granitefleet.com/
 
> What happens if the user has had an older version of Outlook installed
> but now has a newer version? Does the older version registry key

Only a single instance of Outlook can be installed

"Tony Toews [MVP]" <ttoews@telusplanet.net> wrote in message

news:5s32k5p5vsu0lukv3rjt9kcm1ovg6gvovc@4ax.com...
> Folks

> I'd like to determine if Outlook is installed. Is it sufficient to
> check for the existence of the following registry key?

> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\12.0\Outlook\InstallRoot
> Value Path

> Where the 12.0 can clearly change depending on the version of Outlook.

> Now being a paranoid pessimist I'll also double check that the exe
> mentioned in the path also exists.

> What happens if the user has had an older version of Outlook installed
> but now has a newer version? Does the older version registry key
> still exist? Hmm, I'll start at 14.0 and go backwards to version
> 10.0 then.

> Any other things to consider?

> Tony
> > Tony Toews, Microsoft Access MVP
> Tony's Main MS Access pages - http://www.granite.ab.ca/accsmstr.htm
> Tony's Microsoft Access Blog - http://msmvps.com/blogs/access/
> For a convenient utility to keep your users FEs and other files
> updated see http://www.autofeupdater.com/
> Granite Fleet Manager http://www.granitefleet.com/
 
Also keep in mind that your reg path will be different when it comes to x86

vs. x64 systems. If looking for a better reg key to check, might think to

check...

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\OUTLOOK.EXE

"Tony Toews [MVP]" <ttoews@telusplanet.net> wrote in message

news:5s32k5p5vsu0lukv3rjt9kcm1ovg6gvovc@4ax.com...
> Folks

> I'd like to determine if Outlook is installed. Is it sufficient to
> check for the existence of the following registry key?

> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\12.0\Outlook\InstallRoot
> Value Path

> Where the 12.0 can clearly change depending on the version of Outlook.

> Now being a paranoid pessimist I'll also double check that the exe
> mentioned in the path also exists.

> What happens if the user has had an older version of Outlook installed
> but now has a newer version? Does the older version registry key
> still exist? Hmm, I'll start at 14.0 and go backwards to version
> 10.0 then.

> Any other things to consider?

> Tony
> > Tony Toews, Microsoft Access MVP
> Tony's Main MS Access pages - http://www.granite.ab.ca/accsmstr.htm
> Tony's Microsoft Access Blog - http://msmvps.com/blogs/access/
> For a convenient utility to keep your users FEs and other files
> updated see http://www.autofeupdater.com/
> Granite Fleet Manager http://www.granitefleet.com/
 
"neo" <neo> wrote:


> Also keep in mind that your reg path will be different when it comes to x86
> vs. x64 systems. If looking for a better reg key to check, might think to
> check...

Ah, I keep forgetting about that minor detail. Time to purchase a

64 bit laptop. <smile

> HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\OUTLOOK.EXE

Thanks, Tony

Tony Toews, Microsoft Access MVP

Tony's Main MS Access pages - http://www.granite.ab.ca/accsmstr.htm

Tony's Microsoft Access Blog - http://msmvps.com/blogs/access/

For a convenient utility to keep your users FEs and other files

updated see http://www.autofeupdater.com/

Granite Fleet Manager http://www.granitefleet.com/
 
"DL" <notvalid@spoofaddress.co.uk> wrote:


> > What happens if the user has had an older version of Outlook installed
> > but now has a newer version? Does the older version registry key


> Only a single instance of Outlook can be installed

But does the old registry key get deleted?

What if they install an older version of Outlook on top of a newer

version? Oh well, not going to worry too much about that case.

Tony

Tony Toews, Microsoft Access MVP

Tony's Main MS Access pages - http://www.granite.ab.ca/accsmstr.htm

Tony's Microsoft Access Blog - http://msmvps.com/blogs/access/

For a convenient utility to keep your users FEs and other files

updated see http://www.autofeupdater.com/

Granite Fleet Manager http://www.granitefleet.com/
 
Try this function:

Function IsOutlookInstalled() As Boolean

On Error Resume Next

IsOutlookInstalled = (Not CreateObject("Outlook.Application") Is

Nothing)

End Function

--JP

On Jan 3, 4:47 pm, "Tony Toews [MVP]" <tto...@telusplanet.net> wrote:
> Folks

> I'd like to determine if Outlook is installed.  Is it sufficient to
> check for the existence of the following registry key?

> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\12.0\Outlook\InstallRoot
> Value Path

> Where the 12.0 can clearly change depending on the version of Outlook.

> Now being a paranoid pessimist I'll also double check that the exe
> mentioned in the path also exists.  

> What happens if the user has had an older version of Outlook installed
> but now has a newer version?  Does the older version registry key
> still exist?    Hmm, I'll start at 14.0 and go backwards to version
> 10.0 then.

> Any other things to consider?

> Tony
> > Tony Toews, Microsoft Access MVP
> Tony's Main MS Access pages -http://www.granite.ab.ca/accsmstr.htm
> Tony's Microsoft Access Blog -http://msmvps.com/blogs/access/
> For a convenient utility to keep your users FEs and other files
>   updated seehttp://www.autofeupdater.com/
> Granite Fleet Managerhttp://www.granitefleet.com/
 
JP <jp2112@earthlink.net> wrote:


> Try this function:

> Function IsOutlookInstalled() As Boolean
> On Error Resume Next
> IsOutlookInstalled = (Not CreateObject("Outlook.Application") Is
> Nothing)
> End Function

Ah, now that's an interesting idea. I'll play around with that a bit.

My concern though is it might take several seconds to return a

response while waiting for Outlook to start up.

Tony

Tony Toews, Microsoft Access MVP

Tony's Main MS Access pages - http://www.granite.ab.ca/accsmstr.htm

Tony's Microsoft Access Blog - http://msmvps.com/blogs/access/

For a convenient utility to keep your users FEs and other files

updated see http://www.autofeupdater.com/

Granite Fleet Manager http://www.granitefleet.com/
 
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