You receive a "Setup failed while registering Wspadmin.dll" error message when you try to install ISA Server 2006 or ISA Server 2004 (884494)

The information in this article applies to:

Microsoft Internet Security and Acceleration Server 2006 Enterprise Edition
Microsoft Internet Security and Acceleration Server 2006 Standard Edition
Microsoft Internet Security and Acceleration Server 2004, Standard Edition
Microsoft Internet Security and Acceleration Server 2004, Enterprise Edition

SYMPTOMS

When you try to install Microsoft Internet Security and Acceleration (ISA) Server 2006 or Microsoft Internet Security and Acceleration (ISA) Server 2004, you may receive an error message that resembles the following:

Setup failed while registering Wspadmin.dll

Details: The function My_LoadLibrary failed at the function Registrator::RegisterComContro

CAUSE

This issue may occur if you try to install ISA Server on a computer where a previous installation of one of the following programs is not completely removed:

Microsoft ISA Server 2004
A pre-release version of ISA Server 2004
Microsoft ISA Server 2000

RESOLUTION

To resolve this issue, remove the remnants or the previous Proxy Server installation, and then re-install ISA Server 2006 or ISA Server 2004.

For more information about how to troubleshoot common setup issues, visit the following Microsoft Web site:

http://go.microsoft.com/fwlink/?LinkID=52593

REFERENCES

For more information about ISA Server 2006, visit the following Microsoft Web site:

http://www.microsoft.com/technet/isa/2006/default.mspx

For more information about ISA Server 2004, visit the following Microsoft Web sites:

http://www.microsoft.com/isaserver

http://www.microsoft.com/isaserver/techinfo/default.asp

Modification Type:	Major	Last Reviewed:	10/5/2006
Keywords:	kbISA2006Swept kbDeployment kbFirewall kbtshoot kbprb KB884494 kbAudITPRO