C program that prints itself.

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
    FILE *fp;
    if ((fp = fopen(__FILE__, "r")) == NULL)
    {
        printf("Error! opening file %s\n", __FILE__);
        exit(1);
    }
    while(!feof(fp))
    {
        printf("%c", fgetc(fp));
    }
    fclose(fp);

    getch();   
    return 0;
}

Mitrh & Intersystems CacheDB Connecivity Setup

1. Copy CacheDB.jar into C:\Program Files\Mirth Connect\server-lib\database in your Mirth v3.5 installation directory.
2. Update the dbdrivers.xml file ($MIRTH_HOME/conf/dbdrivers.xml) by appending a line defining the driver class (Driver Class = com.intersys.jdbc.CacheDriver) and JDBC URL( jdbc:Cache://<host>:<port>/<namespace>)

<drivers>
    <driver class="sun.jdbc.odbc.JdbcOdbcDriver" name="Sun JDBC-ODBC Bridge" template="jdbc:odbc:DSN" selectLimit="" />
    <driver class="com.mysql.jdbc.Driver" name="MySQL" template="jdbc:mysql://host:port/dbname" selectLimit="SELECT * FROM ? LIMIT 1" />
    <driver class="oracle.jdbc.driver.OracleDriver" name="Oracle" template="jdbc:oracle:thin:@host:port:dbname" selectLimit="SELECT * FROM ? WHERE ROWNUM &lt; 2" />
    <driver class="org.postgresql.Driver" name="PostgreSQL" template="jdbc:postgresql://host:port/dbname" selectLimit="SELECT * FROM ? LIMIT 1" />
    <driver class="net.sourceforge.jtds.jdbc.Driver" name="SQL Server/Sybase" template="jdbc:jtds:sqlserver://host:port/dbname" selectLimit="SELECT TOP 1 * FROM ?" />
    <driver class="org.sqlite.JDBC" name="SQLite" template="jdbc:sqlite:dbfile.db" selectLimit="SELECT * FROM ? LIMIT 1" />
    <driver class="com.intersys.jdbc.CacheDriver" name="CacheDB" template="jdbc:Cache://host:port/namespace" selectLimit="SELECT * FROM ? LIMIT 1" />
</drivers>

3. Restart mirth connecct.

Note: CacheDB.jar can be downloaded at following sites
    http://www.dbschema.com/cache-jdbc-driver.html
    https://www.oxygenxml.com/database_drivers.html