Flags enum with too many items; last value is too large. How can I resolve this?

Possible Duplicate: When you use flag(Enum) you have a limit of 64. What are the alternative when you reach the limit? I have the following `[Flags] enum` that has to contain 33 elements: ``` [Flags] public enum Types { None = 0, Alarm = 1, Exit = 2, Panic = 4, Fire = 8, Tamper = 16, Key = 32, Line = 64, FTC = 128, Unused = 256, tech_1 = 512, //... tech_2 through _7 omitted for brevity tech_8 = 65536, fire_1 = 131072, //... fire_2 through _11 omitted for brevity fire_12 = 268435456, Key = 536870912, Exit = 1073741824, Gas = 2147483648, // Cannot convert source type uint to target type int } ``` The value for the last item appears to be too large. Has anyone dealt with this before? Any ideas how this can be resolved / worked around?