There is a potential problem with the Microsoft .NET Framework that can prevent the JAMS Services from starting. The .NET Framework verifies an executable images digital signature when a service starts. During this verification the Framework downloads a certificate revokation list from:
http://crl.microsoft.com/pki/crl/products/CSPCA.crl
If internet access is slow or access to this URL is blocked, the service may fail to start because the Service Control Manager times out waiting for the image to start.
Here is a link to a Microsoft Knowledgebase article that talks about the problem:
http://support.microsoft.com/kb/936707
This Knowledgebase article describes how to increase the service timeout value which could be a way to work around this issue:
http://support.microsoft.com/kb/922918