Tomcat wouldn't start on Windows server 2003, Java 6 JDK, and Tomcat 6. With the following log errors:

[2009-01-16 11:22:19] [1343 prunsrv.c] [debug] Procrun log initialized
[2009-01-16 11:22:19] [info] Procrun (2.0.4.0) started
[2009-01-16 11:22:19] [info] Running Service...
[2009-01-16 11:22:19] [1166 prunsrv.c] [debug] Inside ServiceMain...
[2009-01-16 11:22:19] [info] Starting service...
[2009-01-16 11:22:19] [174  javajni.c] [error] The specified module could not be found.
[2009-01-16 11:22:19] [994  prunsrv.c] [error] Failed creating java 
C:\Program Files\Java\jre1.6.0_07\bin\client\jvm.dll
[2009-01-16 11:22:19] [1269 prunsrv.c] [error] ServiceStart returned 1
[2009-01-16 11:22:19] [info] Run service finished.
[2009-01-16 11:22:19] [info] Procrun finished.
[2009-01-16 11:24:41] [1343 prunsrv.c] [debug] Procrun log initialized
[2009-01-16 11:24:41] [info] Procrun (2.0.4.0) started
[2009-01-16 11:24:41] [info] Debugging Service...
[2009-01-16 11:24:41] [1166 prunsrv.c] [debug] Inside ServiceMain...
[2009-01-16 11:24:41] [info] Starting service...
[2009-01-16 11:24:41] [174  javajni.c] [error] The specified module could not be found.

After googling, this is usually happen because of missing msvcr71.dll file. However tomcat doesn’t use msvcr71.dll directly, it’s used by the Java Virtual Machine (JVM).

Here is the few solutions, try it out.

1) Copy msvcr71.dll from java’s bin directory to tomcat’s bin folder
2) Add java’s bin directory to windows environment variable
3) Copy msvcr71.dll from java’s bin directory to windows\system32 folder
4) Make sure your tomcat’s pointing to correct jvm.dll folder.