best installation for support of BV2.1, LV6.0.2 and LV6.1

[aetc]

I need to support various applications written in different versions of Bridgeview/Labview, specifically Bridgeview 2.1.1, Labview 6.0.2 with DSC and Labview 6.1 with DSC. Upgrading all to the latest version is not an option. Does anybody have experience with what installation method on my PC would best avoid problems?
Right now I have the 3 different versions installed in 3 different drives. Does anybody have experience with installations in different partitions? Any pro's/con's for these methods or other methods?

[Green_Rives]

Being in in the Industrial Automation Support group, I tend to have all three versions installed on my computer. From my experience, I have found that it worked best in the order below.

1.) BridgeVIEW (without DAQ)
2.) Verify that BridgeVIEW and the Tag Engine runs
2.) LabVIEW 6.0.2 with DSC (without DAQ)
3.) Verify that LabVIEW and the 6.0.2 Tag Engine runs
4.) LabVIEW 6.1 (with DAQ)

Installing in a different order can cause the OPC and VI servers to not be registered correctly. If this problem occurs, go to the directory:

C:\Program Files\National Instruments\LabVIEW 6.1\vi.lib\lvdsc\servers

and run the Register OPC Proxy.vi and the Register logos proxy.vi

I have not tried different partitions; however, since they install in different d
irectories, having them on the same partition versus a different partition should not matter.