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"The requested lookup key was not found in any active activation context" and Process.Start()

Posted by on Wednesday, October 05, 2005 (EST)

Work-around for "The requested lookup key was not found in any active activation context" exception when using Process.Start() to spawn a browser with a URL.

It's appears there is sometimes some threading issues when using Process.Start() to spawn a browser by starting a URL. It's not too clear what the issues are; but the following works around the problem (C#):
 

    Process process = new Process();
    process.StartInfo.FileName = "rundll32.exe";
    process.StartInfo.Arguments = "url.dll,FileProtocolHandler " + url;
    process.StartInfo.UseShellExecute = true;
    process.Start();


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Comments:

lookup key errors
By penznikel on Saturday, March 17, 2007 (EST)

ok but where do you do this fix for lookup key errors'

 

help - please explain as if i were in kindergarten.

thankyou

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look up key
By XLilRudeOneX on Monday, July 23, 2007 (EST)

I keep having this window pop up sayin 'look up key was not found in any active activation context' i dont know what it is and i dont i dont understand how to get rid of it please can u help me thank you

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RE: look up key
By Peter Ritchie on Monday, July 23, 2007 (EST)
What's the context?  Is this in an application you've written?

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Error
By Sharon on Wednesday, August 01, 2007 (EST)
"The requested look-up key was not found in any active activation context"  When trying to open a web-site from my toolbar - I receive this message.  Can you tell me exactly how to fix this - not very computer literate.

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Lock up error
By Sharon on Wednesday, August 01, 2007 (EST)
Did you receive a reply how to fix this error?  If so, please let me have instructions.  Thank you.

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Fixing
By Peter Ritchie on Wednesday, August 01, 2007 (EST)
The only way to fix the problem is to change the software.  If this isn't software you are writing, only software you're using (that someone else wrote), you'll have to contact the author/vendor to get them to fix it.

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VB Conversion
By macAsp on Thursday, May 01, 2008 (EST)

Peter,

 

I have "inherited" a vb project which I'm trying to convert to VS 08.

 

When running the conversion process/wizard it returns with the error:

 

"The requested lookup key was not found in any active activation context."

 

As I am new to this version I would really appreciate any pointers you could give me.

 

R&T,

 

mac.

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Error with VB conversion wizard
By Peter Ritchie on Thursday, May 01, 2008 (EST)

If this is an error when running the VB conversion wizard, I would suggest contacting customer support--that sounds like a defect.

 

Alternatively, you could try asking on one of the VB forums like Visual Basic Interop and Upgrade

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Error with VB conversion wizard
By macAsp on Thursday, May 01, 2008 (EST)

Thanks for the response.

Will do.

 

Regards,

 

mac.

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lock up key
By rita on Thursday, July 31, 2008 (EST)

I keep having this window pop up sayin 'look up key was not found in any active activation context' i dont know what it is and i dont i dont understand how to get rid of it please can u help me thank you/

 

I am having this dillema

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lookup key
By bperry on Thursday, December 11, 2008 (EST)
I see the list of commands to type in, but where do I type them at?

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Commands
By Peter Ritchie on Thursday, December 11, 2008 (EST)
If by "commands" you mean the text starting "Process process = new Process();" this is C# code that you'd include an a C# application that you're writing.

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lookup key
By bperry on Friday, December 12, 2008 (EST)
Sorry, I don't even know what a c#code or c#application is.  Over my head.

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Requested lookup key
By Johan on Saturday, December 13, 2008 (EST)
I am having the same proble as all the above and does not know how to fix it please help

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genuine softwae
By sidra on Sunday, December 14, 2008 (EST)

Sir!

I m in the trouble as i get the message when i type any URL " The requested look up key was not found in any active activation context" . i saw the same question in ur profile. so can u help me out? and what is Genuine software? I think this Error message is because of this ... Plz help

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Help
By sidra on Sunday, December 14, 2008 (EST)

Sir!

I m in the trouble as i get the message when i type any URL " The requested look up key was not found in any active activation context" . i saw the same question in ur profile. so can u help me out? and what is Genuine software? I think this Error message is because of this ... Plz help

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help!!!!
By sidra on Sunday, December 14, 2008 (EST)

Sir!

I m in the trouble as i get the message when i type any URL " The requested look up key was not found in any active activation context" . i saw the same question in ur profile. so can u help me out? and what is Genuine software? I think this Error message is because of this ... Plz help

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Requested lookup key not found when browsing
By Peter Ritchie on Sunday, December 14, 2008 (EST)
The only solution I've seen to this problem is to uninstall IE7 then reinstall it, rebooting when it's done.

Reply to this Comment

lookup key not activated
By tmackee on Wednesday, May 13, 2009 (EST)
 what do i do to get the lookup key removed on my computer

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lookup key
By tmackee on Wednesday, May 13, 2009 (EST)
i am having the same problem can you help me with this because my compueter is  please respond to let me know

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Active Activation Context
By Mario Alvarado on Tuesday, June 02, 2009 (EST)

This message appars every time  try to open an e-mail attachment

"The requested look up key was not found in any active activation context" 

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Active Activation Context
By Mario Alvarado on Tuesday, June 02, 2009 (EST)
I have the same problem, I need to know how to resolve it.

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look up key
By kesaunders621 on Monday, June 08, 2009 (EST)
Did you receive information on how to fix the problem with the information given?

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activation context
By kesaunders621 on Monday, June 08, 2009 (EST)
Have you figured out how to resolve this problem?

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Active Activation Context
By Mario Alvarado on Friday, June 26, 2009 (EST)
I haven't resolved my problem yet. I also haven't receive any advise how to solve my problem

Reply to this Comment

ie problem
By naveen rana on Tuesday, June 30, 2009 (EST)
The requested lookup key was not found in any active activation context" and Process.Start

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the look up key problem
By flamingskulls on Wednesday, October 28, 2009 (EST)
ok what u have to do to fix this problem is go to start run the type or copy and paste this in there    %windir%\ie8\spuninst\spuninst.exe where the 8 is u just have th put whatever type of ie explorer u have in there for example if u have ie 7 u put     %windir%\ie7\spuninst\spuninst.exe   then once you have done that follow intructions then resart when prompted to and it should be fixed

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hi
By haidertalib on Saturday, November 07, 2009 (EST)
can u help me about this problem(the requested lookup key was not found in any active activation context)

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look up key bob up
By abdallagalgany on Tuesday, November 10, 2009 (EST)
i keep having bub up, that look up key is not found in any context

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look up key
By flamingskulls on Wednesday, November 18, 2009 (EST)
read what i said

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i need help
By heather123 on Monday, March 29, 2010 (EST)

kay,

im having this problem, on my mothers computer and i need help, what do i do if i cant type anything with out the "the requested lookup key was not found in any active activation context" popping up , ive heard on reinstalling the internet, but im not shur how to do that really, and ughh its jus sooo agrivating, please help me fix this probb.

Reply to this Comment

probelm
By mamrasul on Sunday, August 08, 2010 (EST)
I m in the trouble as i get the message when i type any URL " The requested look up key was not found in any active activation context

Reply to this Comment

probelm
By mamrasul on Sunday, August 08, 2010 (EST)
I m in the trouble as i get the message when i type any URL " The requested look up key was not found in any active activation context

Reply to this Comment

probelm
By mamrasul on Sunday, August 08, 2010 (EST)
I m in the trouble as i get the message when i type any URL " The requested look up key was not found in any active activation context

Reply to this Comment

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