Hi Nanda Kumar ,
Refer : Which version Visual Studio does CA Single Sign On 12.x use?
12.52 SP1 & 2 require the use of the VC++ 2005 for embedded 3rd party components. As they are embedded, VC++ 2005 cannot be removed.
CA SSO 12.6 was compiled using VC++ 2013 and has no components requiring an older VC++ version.
VS version in 12.52 ? VC++ 2005
Refer - https://communities.ca.com/ideas/235733492-vc-2005-cannot-upgrade-on-policyserver-r1252
VS version in 12.6 ? VC++ 2013
VS version in 12.7 ? VC++ 2013
Regards,
Leo Joseph.