Problems launching a windows exe from Qt (using QProcess)

[smacchia]

I'm using the following code to launch a process. The program exists and I can run it on the command line. The code snippet from the slot/method trying to launch the program:

process = new QProcess; // process is a member of my class typed QProcess*
connect(
	&process, SIGNAL (error(QProcess::ProcessError)),
	this,    SLOT(sdLaunchError (QProcess::ProcessError)));
 
QString path("C:\\Program Files\\My Compay\\MyCompanyMonitor");
 
QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
process->setWorkingDirectory(path);
QString fullPath = path + ";" + env.value("Path");
env.insert("PATH", fullPath);
process->setProcessEnvironment(env);
 
process->start("Monitor");

process = new QProcess; // process is a member of my class typed QProcess*
connect(
	&process, SIGNAL (error(QProcess::ProcessError)),
	this,    SLOT(sdLaunchError (QProcess::ProcessError)));
	
QString path("C:\\Program Files\\My Compay\\MyCompanyMonitor");
	
QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
process->setWorkingDirectory(path);
QString fullPath = path + ";" + env.value("Path");
env.insert("PATH", fullPath);
process->setProcessEnvironment(env);

process->start("Monitor");

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The error I get when I call errorString from sdLaunchError (the slot called when the QProcess::error signal is called) is "No such file or directory". The file is definitely there. I've tried changing the call to QProcess::setWorkingDirectory to the following (so that the path with spaces is enclosed in quotes):

process.setWorkingDirectory("\"" + path + "\"");

process.setWorkingDirectory("\"" + path + "\"");

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I tried adding QIODevice::NotOpen to QProcess::start call. I tried changing the call to ::start to include the extension:

process.start("Monitor.exe);

process.start("Monitor.exe);

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In a command prompt, I emulated this in the following way:

C:
cd \
set PATH=C:\Program Files\My Company\MyCompanyMonitor;%PATH%
Monitor

And the program runs. What am I doing wrong? (As an aside, I've launched programs several times on Linux with no problems on other projects).

I'm running with Qt 4.6.0 on Windows XP.

Thanks in advance!