Unable to connect to Remote Desktop Web Connection (TSWeb)

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PROBLEM DESCRIPTION:

My customer was facing issue while installing the Remote Desktop Web Connection ActiveX control on Windows XP SP2.

TROUBLESHOOTING DONE:

- He was using Windows XP SP2 and had installed the Remote Desktop Web Connection : XPSP2 [5,1,2600,2180] from
https://www.microsoft.com/downloads/details.aspx?FamilyID=469eee3a-45b4-4b40-b695-b678646a728b&displaylang=en

- But we somehow weren’t able to run the TSWeb even after we followed most of the steps listed in KB 951607. (https://support.microsoft.com/kb/951607)

- We later installed SP3 for windows XP and register mstscax.dll after which we were able to use the TSWeb.

MORE INFORMATION:

In Windows XP Service Pack 2 (SP2), you had to install the Msrdp.ocx file to enable the Terminal Services ActiveX control. Windows XP Service Pack 3 (SP3) already includes this ActiveX control and installs it by using the Mstscax.dll file. By default, this ActiveX control is disabled in Windows XP Service Pack 3 (SP3).