OpenChannel problem with winzip

[jyotikunder]

Hi,
I am running winzip32.exe from my appl.n for extracting db.zip. I want to use OpenChannel() for knowing if winzip has completed it's processing before my PB appl.n performs any other processing. But i am failing to do so.
Can anyone be kind enough to guide me relating to this? Do i have to specify the path of db.zip or where am i going wrong?
Thanx a ton in advance.

***my code****
time starttime
str = "c:\inv\"
long hndl
OpenChannel("Winzip","db.zip&quot
IF hndl < 1 then
run(&quot;C:\Program Files\WinZip\Winzip32.exe -min -e -o &quot; + str + &quot;db.zip &quot; + str)
starttime = Now()

DO
setpointer(hourglass!)
Yield()
hndl = OpenChannel(&quot;winzip&quot;,&quot;db.zip&quot
IF hndl > 0 THEN EXIT
LOOP Until SecondsAfter(StartTime,Now()) > 60
setpointer(uparrow!)

IF hndl < 1 THEN
MessageBox(&quot;Error&quot;, &
&quot;Can't start winzip.&quot;, StopSign!)
SetPointer(Arrow!)
RETURN
END IF
END IF