Portable SmartFTP stays in memory

I've noticed that if I check the Windows Task Manager after I've exited from Portable SmartFTP, it shows this program as still resident in memory. Is this normal? If it means anything, this is an upgrade from a previous version that I ran from the hard drive. I use PStart to launch portable applications. Thanks.

My system data:
+- System -----------------------------
Microsoft Windows XP Professional
Service Pack 2 (Build 2600)

CPU Speed : 1862 MHz
Total Memory : 1039732 KB
Free Memory : 408612 KB

+- SmartFTP ---------------------------
Version : 2.0.1000.2
Time Stamp : 2006-11-22 21:35:48
Platform : x86

+- Application DLL --------------------
sfFTPLib.dll : 1.5.8.38
SmartHook.dll : 1.0.2.1

+- Language ---------------------------
SmartFTP.exe : 2.0.1000.2

+- System DLL -------------------------
shell32.dll : 6.00.2900.2951 (xpsp.060713-0238)
shlwapi.dll : 6.00.2900.2937 (xpsp.060623-0011)
comctl32.dll : 6.0 (xpsp.060825-0040)
riched20.dll : 5.30.23.1221
schannel.dll : 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)

+- Internet Explorer ------------------
Version : 6.0.2900.2180

+- Winsock ----------------------------
Winsock : 2.2

Hello ..

No. SmartFTP shouldn't stay in the memory. Anyone else can reproduce the problem?

Regards,
-Mat

Well, I just ran Portable SmartFTP on another computer, and it doesn't stay in memory. I also noticed, however, that it didn't automatically log in to the FTP server that I usually connect to -- so is this setting kept some place other than on the portable drive?

FWIW, this is the other computer's settings:
+- System -----------------------------
Microsoft Windows XP Professional
Service Pack 2 (Build 2600)

CPU Speed : 1333 MHz
Total Memory : 2096624 KB
Free Memory : 1730668 KB

+- SmartFTP ---------------------------
Version : 2.0.1000.2
Time Stamp : 2006-11-22 21:35:48
Platform : x86

+- Application DLL --------------------
sfFTPLib.dll : 1.5.8.38
SmartHook.dll : 1.0.2.1

+- Language ---------------------------
SmartFTP.exe : 2.0.1000.2

+- System DLL -------------------------
shell32.dll : 6.00.2900.2869 (xpsp_sp2_gdr.060316-1512)
shlwapi.dll : 6.00.2900.2904 (xpsp_sp2_gdr.060509-0218)
comctl32.dll : 6.0 (xpsp_sp2_rtm.040803-2158)
riched20.dll : 5.30.23.1221
schannel.dll : 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)

+- Internet Explorer ------------------
Version : 6.0.2900.2180

+- Winsock ----------------------------
Winsock : 2.2

Oh, the problematic computer is running McAfee's firewall and the corporate version of McAfee Antivirus. The non-problem computer has an ancient version of Norton's firewall and antivirus on it. Don't know if that makes a difference or not.