I recently installed the Portable version of Winmerge 2.6.14 on my external USB Hard Drive.
I abhore the default configuaration when I launch it from the PortableApps.com menu.
It does what I want if I use Windows Explorer to select and double click
H:\PortableApps\WinMergePortable\App\WinMerge\WinMergeU.exe
Before I knew of PortableApps, I INSTALLED Winmerge 2.6.12. on my Drive C:\, and spent a lot of time adjusting its configuration to meet my exact needs. I do not wish to repeat all that work again.
I believe the Windows Explorer launch causes portable 2.6.14 to use the registry settings as left by the last use of installed 2.6.12, where-as the PortableApps Menu launcher temporarily replaces those settings with the contents of
H:\PortableApps\WinMergePortable\Data\settings\WinMerge.reg,
which I inspected and found to be a simple "Regedit4" registry file for key
[HKEY_CURRENT_USER\Software\Thingamahoochie] plus sub-keys and data.
I assume I simply have to export this key during, or immediately after, using the Installed 2.6.12, and then I can use it to replace the default ...\settings\WinMerge.reg - but I would appreciate confirmation and advice upon any hazards, or any better method.
p.s. I am really pleased to see that version 2.8 is now Portable and look forward to migrating to this - but just one thing at a time - I have difficulty coping with more than one disaster at a time, and anything involving the registry can be a double disaster all by itself !!!
p.p.s. I assume that after I get Portable 2.6.14 working as I wish, I can download version 2.8 and then use the Menu Options / "Install a New App" to simply update
Alan