DRIVER NEEDED: Acer Acer ScanPrisa 640P (Windows XP Professional)

I downloaded this driver from Driver's Guide.com but the message is coming that Windows is not tested the driver therefore it cannt be installed. therefore I need driver for Acer ScanPrisa 640 for Win XP Professional urgently.
Thanks
Rizwan Mohsin




Support Information:
Device Type: Scanner
Manufacturer: Acer
Model: Acer ScanPrisa 640P
Interface: Parallel Port
Operating System: Windows XP Professional
Age of Device: < 2 years old
FCCID:

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[Jerry K]

Instructions for installing Acer brand parallel port scanners in Windows XP:
For this driver to work in XP you must install the MiraScan software then install the scanner manually.
Step 1. Download MiraScan v3.424 from the web: Mirascan_v3424p.exe
Step 2. Unzip and install the Mira Scan driver that you just downloaded. After installation , system will suggest you to add a scanner
Step 3. Then, add an imaging device
Step 4. Then the Scanner and Camera Installation Wizard comes up. Click Next at the bottom.
Step 5. Then on Scanner and Camera Installation Wizard screen it will ask you which scanner or camera do you want to install? You want to go where it says "Manufacturer" and then click on EPPSCANNER and where it says "Model" it should say color flatbedscanner. Make sure it is highlighted, also. Click on Next at the bottom.
Note: For additional screen shots of this procedure and installation procedures, please read the pdf file posted here: scpinwxp-eng.pdf

The Screenshots show to be for Mirascan v3.423 but procedure is same for v3.424

Note: Adobe Acrobat Reader is required to view or print this file.

I downloaded this driver from Driver's Guide.com but the message is coming that Windows is not tested the driver therefore it cannt be installed. therefore I need driver for Acer ScanPrisa 640 for Win XP Professional urgently.
Thanks
suren

Dear Rizwan,

Go to www.benq.com

Click on Support below.

Go to your geographical area or nearst one.

Fill in the options as follows:

For Product Type: Scanner,

For Select Download Type: Diver/Firmware

For Operating System: Windows XP
The choose 640P from the list that comes below and you will have options to download azipped file with instructions in PDF file.

Good Luck.