Hi,

I have a bundle setup containing two msi packages. I have problems with 
upgrades sometimes. One of the msi packages gets uninstalled during upgrade. My 
theory right now is that the msi version numbers are compared alphanumeric. Can 
anyone confirm this? Is this intended behavior or a bug? Or do I maybe have 
some other problem somewhere.

WiX thinking 19.10.95 is a higher version than 19.10.125 would explain the 
problem.

Last case is this. After upgrade 4, Msi2 is gone.

1. Clean install
Bundle.exe;19.10.0123
Msi1.msi;19.10.123
Msi2.msi;19.10.95
(Everyting got installed)

2. Upgrade
Bundle.exe;19.10.0124
Msi1.msi;19.10.124
Msi2.msi;19.10.95
(Msi2.msi still installed)

3. Upgrade
Bundle.exe;19.10.0125
Msi1.msi;19.10.125
Msi2.msi;19.10.95
(Msi2.msi still installed)

4. Upgrade
Bundle.exe;19.10.0127
Msi1.msi;19.10.127
Msi2.msi;19.10.125
(Msi2.msi got uninstalled!)

5. Upgrade
Bundle.exe;19.10.0129
Msi1.msi;19.10.129
Msi2.msi;19.10.125
(Msi2.msi installed again)

This is from the upgrade 4 log:
[10FC:110C][2015-03-12T09:13:43]i000: Setting version variable 
'WixBundleFileVersion' to value '19.10.127.0'
[10FC:08F4][2015-03-12T09:13:43]i100: Detect begin, 2 packages
[10FC:08F4][2015-03-12T09:13:43]i102: Detected related bundle: 
{4e26df89-94bb-4a73-bcf6-c4f508fe877c}, type: Upgrade, scope: PerMachine, 
version: 19.10.125.0, operation: MajorUpgrade
[10FC:08F4][2015-03-12T09:13:43]i103: Detected related package: 
{5CC7046E-52AB-44CB-86EE-F08E783AFAD9}, scope: PerMachine, version: 
19.10.125.0, language: 0 operation: MajorUpgrade
[10FC:08F4][2015-03-12T09:13:43]i103: Detected related package: 
{AE8CE78B-087C-45CA-A0DD-113F89C7AF5A}, scope: PerMachine, version: 19.10.95.0, 
language: 0 operation: Downgrade

Regards,
Leif


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