xampp Apache service stopped working

[art.yaffe]

...after cleaning a virus. It was all working well, and I can still get httpd running with apache_start.bat, but not as a service.
When I use apache_installservice.bat, I get:
...
Now we Start Apache2.4
The Apache2.4 service is starting...
The Apache2.4 service could not be started.

A service specific error occurred: 1.

More help is available by typing NET HELPMSG 3547.

net helpmsg 3547 isn't very helpful.

I'm running Windows 7 Pro, xampp 1.8.2. Ideas, anyone?

[gsmith]

try running the batch file from a command prompt as Administrator.
Start -> Programs -> Accessories -> Command Prompt
right click on it's icon and choose "Run as Administrator"
cd to the location of the batch file
run the batch file