Testcomplete and 64 bit slaves

Shubhangi,

As far as I know, the autorun behavior you described is implemented via special Registry keys. TestComplete's RebootAndContinue functionality also uses these keys. Perhaps, TestComplete is launched before the operating system processes the keys responsible for launching your application. In this case, the test script fails to find your process as it simply has not been launched yet. The problem and solution are described in the following technical article on the SmartBear web site:

[url=http://smartbear.com/support/articles/testcomplete/testing-applications-that-require-rebooting/]
Testing Applications That Require Rebooting[/url]

Let us know whether this helps.