Here is the breif descriptions for 32bit OS.. pc2phone dialer this will support XP Vista & windows 7 32 bit version also
Instructions for Vista/Win7 installation
vista and win7 right click and select run as admin
when it install network drivers it will say drivers not signed so select "continue anyways"
winxp u can double click to install and drivers install unsigned message will come 6 times so select continue anyways all the time
All will need to remove old dialer if any driver install will say VoiceGuard Engine Drivers
How to check whether windows vista / Windows 7 installed on your PC/system is a 32-bit or 64-bit version (x86 or x64)?
Method 1:
Click Start –> Run or Start Search.
Type msinfo32.exe and then press Enter.
Under “System Information“, find the value for the System Type item:
For 32-bit editions of Windows vista, the value of the System Type item is x86-based PC.
For 64-bit editions of Windows vista, the value of the System Type item is x64-based PC.
Method 2:
Click Start, type system in the “Start Search” box, and then click system in the “Programs” list.
The operating system information appears as follows:
For a 64-bit version of windows vista operating system: 64-bit Operating System appears for the “System type” under “System“.
For a 32-bit version of windows vista operating system: 32-bit Operating System appears for the “System type” under “System“.
Method 3:
Click Start, type system in the “Start Search” box, and then click System Information in the “Programs” list.
The operating system appears as follows:
For a 64-bit version of windows vista operating system: x64-based PC appears for the “System type” under “Item“.
For a 32-bit version of windows vista operating system: x86-based PC appears for the “System type” under “Item“.