This is XP Home at SP3 - have done 3 repair re-installs and applied all critical updates. Have run virus scan with AVG and spyware scan with spybotsd - were minor flags with spybotsd that have been cleared. Have run ccleaner and cleaned everything including registry flags.
If I make Firefox default, problem is not present. With IE7 as the default, link is shown in email with OE, but clicking on it has no effect.
Have tried to re-register several dll's as found in some posts, and all register okay except mshtml.dll - that gives an error indicating mshtml.dll was loaded, but the entry DllRegisterServer was not found so could not be registered.
When refreshing XP using the Repair in place option and starting with XP Home SP1, this all works until SP3 or IE7 is installed - I do not know which as I tried the link after SP2 was installed using IE6 and it worked. After installing SP3 along with later critical updates including IE7, it no longer works.
I am unable to downlevel IE back to IE6 as the remove option is not present in add/remove programs for IE7.
Any ideas welcome - next step is to go back to the SP2 level (have an image backup) and then install only SP3 and not IE7 to see if problem is present there.
If I make Firefox default, problem is not present. With IE7 as the default, link is shown in email with OE, but clicking on it has no effect.
Have tried to re-register several dll's as found in some posts, and all register okay except mshtml.dll - that gives an error indicating mshtml.dll was loaded, but the entry DllRegisterServer was not found so could not be registered.
When refreshing XP using the Repair in place option and starting with XP Home SP1, this all works until SP3 or IE7 is installed - I do not know which as I tried the link after SP2 was installed using IE6 and it worked. After installing SP3 along with later critical updates including IE7, it no longer works.
I am unable to downlevel IE back to IE6 as the remove option is not present in add/remove programs for IE7.
Any ideas welcome - next step is to go back to the SP2 level (have an image backup) and then install only SP3 and not IE7 to see if problem is present there.