Guest Chad Posted July 31, 2007 Posted July 31, 2007 I have an issue where anyone connecting to a Windows Server 2003 via the Remote Desktop Web Connection page & has the updated Remote Desktop Connection Client (6.0) installed on XP Server 2003 get the error message: Remote Desktop Web Connection ActiveX control could not be installed. A connection cannot be made without a working installed version of the control. Please contact the server administrator. Does anyone have any idea on what to do besides instructing people to use the client?
Guest TP Posted July 31, 2007 Posted July 31, 2007 Re: Remote Desktop Web Connection + RDP 6.0 Hi, If I understand you correctly you have XP machines with the latest Remote Desktop Client (v6.0.6000.16386) installed connecting to 2003 using remote desktop web? I will assume also that these machines have IE7 and SP2. Please confirm the information or correct me if I am wrong. Are these users seeing the yellow information bar when they navigate to the Remote Desktop Web Connection page? If yes, what does it say exactly? Do they have "Run Activex controls and plug-ins" set to Enable in their security settings for the correct Zone? In Manage Add-ons, is the Microsoft RDP Client Control set to enabled? Have you tried to manually register the client? This is done by having them click Start-->Run and entering the following: regsvr32 c:\windows\system32\mstscax.dll and then hit enter. If it is successful they should get a popup message that says "DllRegisterServer in c:\windows\system32\mstscax.dll succeeded." Thanks. -TP Chad wrote: > I have an issue where anyone connecting to a Windows Server 2003 via > the Remote Desktop Web Connection page & has the updated Remote > Desktop Connection Client (6.0) installed on XP Server 2003 get the > error message: Remote Desktop Web Connection ActiveX control could > not be installed. A connection cannot be made without a working > installed version of the control. Please contact the server > administrator. > > Does anyone have any idea on what to do besides instructing people to > use the client?
Guest Chad Posted July 31, 2007 Posted July 31, 2007 Re: Remote Desktop Web Connection + RDP 6.0 "TP" wrote: > Hi, > > If I understand you correctly you have XP machines with the > latest Remote Desktop Client (v6.0.6000.16386) installed > connecting to 2003 using remote desktop web? I will assume > also that these machines have IE7 and SP2. Please confirm > the information or correct me if I am wrong. Yes that is correct. I am also trying to connect from Windows Server 2003 also with IE7, SP2, and RDC 6.0.6000 > Are these users seeing the yellow information bar when they > navigate to the Remote Desktop Web Connection page? If > yes, what does it say exactly? Yes. The first thing that comes up is the error message stating: "Remote Desktop Web Connection ActiveX control could not be installed. A connection cannot be made without a working installed version of the control. Please contact the server administrator. " Then you hit OK click on the yellow bar and hit 'Run ActiveX Control' and the same error message comes up. > Do they have "Run Activex controls and plug-ins" set to Enable > in their security settings for the correct Zone? Yes and I also had them reset everything to the defaults and the same thing happens. > In Manage Add-ons, is the Microsoft RDP Client Control set to > enabled? No it is not even listed, this is part of the problem as it isn't even being installed, it just throws up the error message. > Have you tried to manually register the client? This is done by > having them click Start-->Run and entering the following: > > regsvr32 c:\windows\system32\mstscax.dll > > and then hit enter. If it is successful they should get a popup message > that says "DllRegisterServer in c:\windows\system32\mstscax.dll succeeded." I tried the regsvr32 command and it said that it succeeded, but I still get the same error message. What is strange to me is that it works fine from a Vista computer using the same version of RDC, as well as from a XP computer using RDC 5.2 or 5.1. Thanks for the suggestions.
Guest TP Posted August 1, 2007 Posted August 1, 2007 Re: Remote Desktop Web Connection + RDP 6.0 Here are some additional suggestions: Try unregistering and then registering the dll again using regsvr32. The command to unregister would be: regsvr32 /u c:\windows\system32\mstscax.dll Uninstall the version 6 remote desktop client. After it is successfully uninstalled, open up the remote desktop web connection page and see if it will download and install the older 5.2.3790.x version of the activex. Once you have verified that it works with the 5.2 version you could reinstall the version 6 client if you really have your heart set on using it. Currently I do not recommend the new version because of the bugs and the fact that in most scenarios it adds no additional benefit when connecting to 2003. -TP Chad wrote: > "TP" wrote: > >> Hi, >> >> If I understand you correctly you have XP machines with the >> latest Remote Desktop Client (v6.0.6000.16386) installed >> connecting to 2003 using remote desktop web? I will assume >> also that these machines have IE7 and SP2. Please confirm >> the information or correct me if I am wrong. > > Yes that is correct. I am also trying to connect from Windows Server > 2003 also with IE7, SP2, and RDC 6.0.6000 > >> Are these users seeing the yellow information bar when they >> navigate to the Remote Desktop Web Connection page? If >> yes, what does it say exactly? > > Yes. The first thing that comes up is the error message stating: > > "Remote Desktop Web Connection ActiveX control could not be > installed. A connection cannot be made without a working installed > version of the control. Please contact the server administrator. " > > Then you hit OK click on the yellow bar and hit 'Run ActiveX Control' > and the same error message comes up. > >> Do they have "Run Activex controls and plug-ins" set to Enable >> in their security settings for the correct Zone? > > Yes and I also had them reset everything to the defaults and the same > thing happens. > >> In Manage Add-ons, is the Microsoft RDP Client Control set to >> enabled? > > No it is not even listed, this is part of the problem as it isn't > even being installed, it just throws up the error message. > >> Have you tried to manually register the client? This is done by >> having them click Start-->Run and entering the following: >> >> regsvr32 c:\windows\system32\mstscax.dll >> >> and then hit enter. If it is successful they should get a popup >> message that says "DllRegisterServer in >> c:\windows\system32\mstscax.dll succeeded." > > I tried the regsvr32 command and it said that it succeeded, but I > still get the same error message. > > > What is strange to me is that it works fine from a Vista computer > using the same version of RDC, as well as from a XP computer using > RDC 5.2 or 5.1. > > Thanks for the suggestions.
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