Regards

WOw this helped me ..Just make the PublicKeyToken=31bf3856ad364e35'  CAPITAL and it works

Thanks .I was banging my head for whole day

 that was the solution I needed. Thanx very much!!!

Thank you for this solution, it was just what I needed.

Hi,

 Thanks that reallyt helped be alot !! Saved me hours of search for a stupid lower/uppercase thingy !!

Thanks again.

Its simple. Just serach the files eg. System.******** and copy those files into the bin directoy of your website. You shold be good.

 I had the same problem since I opened the Visual Studio for the first time, but when I closed VS and reopened, I didn't get the error. It worked fine.

 That has certainly gotten me past the inability to compile, but now I am getting "Microsoft JScript runtime error: 'Sys' is undefined"....

 I am really close to uninstalling all this AJAX crap.  What a bug filled bunch of bull.  I am burning DAYS on this and cannot demo the application because of a MS bug...

 Could anyone PLEASE help me on this?

 I have VS 2005 and VS 2008 installed and have the same problem in both.  Nothing seems to get me past the "Microsoft JScript runtime error: 'Sys' is undefined" error.  I have installed, uninstalled, CTP, beta, etc. with no luck what so ever.

Please help this extremely frustrated developer.  :)

Thanks in advance,

B


 

This helped me.. thanks Alot :) 

woony:

pack27:

Just copy the System.Web.Extensions.dll into the bin directory of your web application

 

pack27:

It's the same thing but the PublicKeyToken is in capitals....

Save it and browse to my site and bingo!

I found this from 2-Jan-07. It works for me. After an entire afternoon changing permissions etc because only a FULL administrator can install the AjAX kit on my server, and it still not working, I came across this little gem!

How the hell were we supposed to guess that the key was case specific, especially as it works on my dev machine.

Harrumph!

Thanks a lot!

 I also have an application in which I used the ASP.NET AJAX Controls but since the dlls are not on the Server and My Service Provider is not ready to make the favour for me. So this helped me a lot. You have solved one of my greatest problem

 Once Again Thanks a lot!

It worked for me, too.

 THanks.

This worked perfectly!

Thanks,

Mike G.

HI. Makesure you have same version in GAC and you are not missing to add refrences of dependent dll .
 
you can play with GAC like this

http://www.revenmerchantservices.com/ajax/systemwebextensions.html 

Satalaj   :)

    I found that on the hosted provider ipowerweb, renaming  old version of the web ext.  with the version=3.5.0.0.  That solved the issue with the hosted provider ipowerweb.