Installing Web Agent for IIS, the installation folder is still set to the wrong ones.
The Web Agent has been installed to E:\Server_Apps\Siteminder\webagent but module paths are to C:\Program files\webagent.
2 days ago, the Web Agent was installed in the C:\Program files\webagent folder and uninstalled.
Modify the IIS configuration manually to fit the current installation.
If this doesn't work, uninstall again the Web Agent and follow the steps to thoroughly uninstall it manually (1).
<globalModules>
[...omitted for brevity...]
<add name="CASiteMinderWebagentModule" image="C:\Program Files\CA\webagent\win64\bin\IIS7WebAgent.dll" preCondition="integratedMode,bitness64" />
<add name="CASiteMinderWebagentModule-32" image="C:\Program Files\CA\webagent\win32\bin\IIS7WebAgent.dll" preCondition="integratedMode,bitness32" />
</globalModules>
to
<globalModules>
[...omitted for brevity...]
<add name="CASiteMinderWebagentModule" image="E:\CA\webagent\win64\bin\IIS7WebAgent.dll" preCondition="integratedMode,bitness64" />
<add name="CASiteMinderWebagentModule-32" image="E:\CA\webagent\win32\bin\IIS7WebAgent.dll" preCondition="integratedMode,bitness32" />
</globalModules>
<isapiCgiRestriction>
[...omitted for brevity...]
<add path="C:\Program Files\CA\webagent\win64\bin\ISAPI6WebAgent.dll" allowed="true" groupId="Webagent" description="Webagent" />
<add path="C:\Program Files\CA\webagent\win32\bin\ISAPI6WebAgent.dll" allowed="true" groupId="Webagent" description="Webagent" />
<add path="E:\CA\webagent\win64\bin\ISAPI6WebAgent.dll" allowed="true" groupId="Webagent" description="Webagent" />
<add path="E:\CA\webagent\win32\bin\ISAPI6WebAgent.dll" allowed="true" groupId="Webagent" description="Webagent" />
</isapiCgiRestriction>
to
<isapiCgiRestriction>
[...omitted for brevity...]
<add path="E:\CA\webagent\win64\bin\ISAPI6WebAgent.dll" allowed="true" groupId="Webagent" description="Webagent" />
<add path="E:\CA\webagent\win32\bin\ISAPI6WebAgent.dll" allowed="true" groupId="Webagent" description="Webagent" />
</isapiCgiRestriction>
If this didn't work fine, revert the applicationHost.config file, and uninstall the Web Agent, and then manually remove the trailing pieces if any (1).